[8833] | 1 | [This file contains two alternative recipes for compiling X11 with GCC. |
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| 2 | The first alternative puts libgcc.a into the shared X library; the second |
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| 3 | does not. Neither alternative works on all kinds of systems. |
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| 4 | It may be that when using GCC 2.4, both alternatives work okay on |
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| 5 | relatively recent Sparc systems. The first alternative is likely |
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| 6 | not to work on a Sun 3 without hardware floating point.] |
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| 7 | |
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| 8 | How to compile X11R5 (patch level 11) with GCC version 2: |
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| 9 | |
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| 10 | The patches include support for building the shared libraries with GCC |
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| 11 | 2 on the Sparc and 68k machines. This version includes the necessary |
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| 12 | parts of libgcc.a in the shared library for X, in case functions in |
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| 13 | that library need it. Thus the default behavior is now to build |
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| 14 | everything, including the libraries, with gcc. |
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| 15 | |
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| 16 | If you build the shared library this way, it may not work with |
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| 17 | executables made with older versions of GCC (2.3.3 and earlier). |
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| 18 | If that happens, relink those executables with the latest GCC. |
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| 19 | IF YOU THINK YOU MIGHT COMPILE X FOR SOLARIS 2, then you really don't |
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| 20 | need this patch: get /contrib/R5.SunOS5.patch.tar.Z from |
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| 21 | export.lcs.mit.edu instead. It has everything you need to do the |
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| 22 | build for Solaris 2, sets you up to everything with GCC, and is |
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[11287] | 23 | backward compatible with SunOS 4.*. Get the the README |
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[8833] | 24 | (/contrib/R5.SunOS5.patch.README at export) for more info. |
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| 25 | |
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| 26 | If you see undefined symbols _dlopen, _dlsym, or _dlclose when linking |
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| 27 | with -lX11, compile and link against the file mit/util/misc/dlsym.c in |
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| 28 | the MIT X11R5 distribution. Alternatively, do dynamic linking |
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| 29 | by using a non-GNU ld. |
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| 30 | |
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| 31 | mit/config/Imake.tmpl -- Do not set -fstrength-reduce if we have GCC 2. |
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| 32 | If -fstrength-reduce (or any other -f option) is a major win, then it |
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| 33 | will most likely be turned on by -O2 optimization. |
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| 34 | |
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| 35 | mit/config/sunLib.rules -- If HasGcc and GccVersion > 1 are true, then |
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| 36 | use gcc -fpic to generate PIC code. Make sure that gcc does not use |
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| 37 | gas (the GNU assembler) when compiling PIC code; gas does not assemble |
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| 38 | it correctly. |
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| 39 | |
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| 40 | ***If you have gas installed where gcc uses it by default, you might have |
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| 41 | to add -B/bin/ to the PositionIndependentCFlags.*** |
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| 42 | |
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| 43 | mit/config/site.def -- Define GccVersion to be 2. |
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| 44 | |
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| 45 | mit/config/sun.cf -- When compiling with GCC 2, use -O2 optimization. |
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| 46 | |
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| 47 | mit/config/sunLib.rules -- When compiling with GCC 2, use -fpic for |
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| 48 | position independent code generation. |
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| 49 | |
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| 50 | mit/rgb/Imakefile -- No longer need to compile some modules with |
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| 51 | cc on the Sparc since GCC 2 produces proper -fpcc-struct-return code. |
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| 52 | |
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| 53 | mit/server/os/Imakefile -- Likewise. |
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| 54 | |
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| 55 | mit/server/ddx/sun/Imakefile -- When compiling with GCC 2, some modules |
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| 56 | should be compiled with -fvolatile. |
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| 57 | |
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| 58 | mit/clients/twm/Imakefile -- Fix bad decls of malloc, realloc in gram.c. |
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| 59 | |
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| 60 | mit/lib/X/Imakefile -- Make libgcc.a a required lib for libX11.so |
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| 61 | |
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| 62 | *** mit/clients/twm/Imakefile Mon May 17 22:05:22 1993 |
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| 63 | --- new/clients/twm/Imakefile Mon May 17 22:28:46 1993 |
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| 64 | *************** |
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| 65 | *** 32,41 **** |
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| 66 | --- 32,48 ---- |
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| 67 | ComplexProgramTarget(twm) |
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| 68 | InstallNonExecFile(system.twmrc,$(TWMDIR)) |
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| 69 | |
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| 70 | + #if HasGcc && GccVersion > 1 && defined (SunArchitecture) |
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| 71 | gram.h gram.c: gram.y |
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| 72 | yacc $(YFLAGS) gram.y |
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| 73 | + sed -e 's/^extern char \*malloc(), \*realloc();//g' y.tab.c >gram.c |
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| 74 | + $(MV) y.tab.h gram.h |
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| 75 | + #else |
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| 76 | + gram.h gram.c: gram.y |
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| 77 | + yacc $(YFLAGS) gram.y |
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| 78 | $(MV) y.tab.c gram.c |
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| 79 | $(MV) y.tab.h gram.h |
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| 80 | + #endif |
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| 81 | |
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| 82 | clean:: |
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| 83 | $(RM) y.tab.h y.tab.c lex.yy.c gram.h gram.c lex.c deftwmrc.c |
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| 84 | *** mit/config/Imake.tmpl Mon May 17 22:02:57 1993 |
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| 85 | --- new/config/Imake.tmpl Mon May 17 22:15:06 1993 |
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| 86 | *************** |
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| 87 | *** 500,506 **** |
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| 88 | --- 500,510 ---- |
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| 89 | #endif |
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| 90 | #ifndef CcCmd |
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| 91 | #if HasGcc |
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| 92 | + #if GccVersion > 1 |
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| 93 | + #define CcCmd gcc -fpcc-struct-return |
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| 94 | + #else |
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| 95 | #define CcCmd gcc -fstrength-reduce -fpcc-struct-return |
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| 96 | + #endif |
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| 97 | #else |
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| 98 | #define CcCmd cc |
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| 99 | #endif |
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| 100 | *** mit/config/site.def Mon May 17 22:02:44 1993 |
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| 101 | --- new/config/site.def Mon May 17 22:22:28 1993 |
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| 102 | *************** |
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| 103 | *** 25,31 **** |
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| 104 | |
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| 105 | #ifdef BeforeVendorCF |
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| 106 | |
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| 107 | ! /* #define HasGcc YES */ |
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| 108 | |
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| 109 | #endif /* BeforeVendorCF */ |
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| 110 | |
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| 111 | --- 25,33 ---- |
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| 112 | |
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| 113 | #ifdef BeforeVendorCF |
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| 114 | |
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| 115 | ! #define HasGcc YES |
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| 116 | ! /* GccVersion > 1 implies building shared libraries with gcc */ |
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| 117 | ! #define GccVersion 2 |
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| 118 | |
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| 119 | #endif /* BeforeVendorCF */ |
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| 120 | |
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| 121 | *** mit/config/sun.cf Mon May 17 22:03:02 1993 |
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| 122 | --- new/config/sun.cf Mon May 17 22:24:55 1993 |
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| 123 | *************** |
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| 124 | *** 41,49 **** |
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| 125 | --- 41,55 ---- |
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| 126 | |
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| 127 | #if HasGcc |
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| 128 | |
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| 129 | + #if GccVersion > 1 |
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| 130 | + #define OptimizedCDebugFlags -O2 |
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| 131 | + #else |
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| 132 | + #define OptimizedCDebugFlags -O |
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| 133 | #define SharedLibraryCcCmd cc |
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| 134 | #define ExtraLoadFlags -B/usr/bin/ |
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| 135 | #define AllocateLocalDefines /**/ |
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| 136 | + #endif |
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| 137 | + |
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| 138 | |
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| 139 | .c.o: |
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| 140 | $(CC) -c $(CFLAGS) $*.c |
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| 141 | *** mit/config/sunLib.rules Mon May 17 22:02:46 1993 |
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| 142 | --- new/config/sunLib.rules Mon May 17 22:19:06 1993 |
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| 143 | *************** |
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| 144 | *** 23,29 **** |
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| 145 | --- 23,33 ---- |
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| 146 | #define SharedLibraryLoadFlags -assert pure-text |
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| 147 | #endif |
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| 148 | #ifndef PositionIndependentCFlags |
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| 149 | + #if defined(HasGcc) && GccVersion > 1 |
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| 150 | + #define PositionIndependentCFlags -fpic |
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| 151 | + #else |
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| 152 | #define PositionIndependentCFlags -pic |
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| 153 | + #endif |
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| 154 | #endif |
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| 155 | |
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| 156 | /* |
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| 157 | *** mit/lib/X/Imakefile Mon May 17 22:05:03 1993 |
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| 158 | --- new/lib/X/Imakefile Mon May 17 22:32:26 1993 |
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| 159 | *************** |
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| 160 | *** 9,14 **** |
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| 161 | --- 9,31 ---- |
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| 162 | #define MotifBC NO |
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| 163 | #endif |
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| 164 | |
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| 165 | + #if defined(SunArchitecture) |
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| 166 | + #if SystemV4 |
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| 167 | + #if HasGcc |
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| 168 | + REQUIREDLIBS= -lgcc -lc |
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| 169 | + #else |
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| 170 | + REQUIREDLIBS= -lc |
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| 171 | + #endif |
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| 172 | + #else |
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| 173 | + #if HasGcc && GccVersion > 1 |
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| 174 | + XCOMM Hack to fix gcc 2 ``-nostdlib'' deficiency on SunOS 4.x |
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| 175 | + REQUIREDLIBS= `gcc -v 2>&1 | awk '{print $$4}' | sed -e 's/specs$$/libgcc.a/'` |
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| 176 | + #else |
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| 177 | + REQUIREDLIBS= |
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| 178 | + #endif |
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| 179 | + #endif |
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| 180 | + #endif |
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| 181 | + |
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| 182 | #ifndef BuildXimp |
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| 183 | #define BuildXimp NO |
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| 184 | #endif |
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| 185 | *** mit/rgb/Imakefile Mon May 17 22:05:31 1993 |
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| 186 | --- new/rgb/Imakefile Mon May 17 22:25:30 1993 |
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| 187 | *************** |
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| 188 | *** 17,23 **** |
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| 189 | #if !(defined(SGIArchitecture) || SystemV4) |
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| 190 | DBMLIB = -ldbm |
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| 191 | #endif |
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| 192 | ! #if defined(SparcArchitecture) && HasGcc |
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| 193 | CC = cc |
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| 194 | CCOPTIONS = /**/ |
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| 195 | EXTRA_LOAD_FLAGS = /**/ |
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| 196 | --- 17,23 ---- |
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| 197 | #if !(defined(SGIArchitecture) || SystemV4) |
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| 198 | DBMLIB = -ldbm |
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| 199 | #endif |
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| 200 | ! #if defined(SparcArchitecture) && HasGcc && GccVersion <= 1 |
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| 201 | CC = cc |
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| 202 | CCOPTIONS = /**/ |
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| 203 | EXTRA_LOAD_FLAGS = /**/ |
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| 204 | *** mit/server/ddx/sun/Imakefile Mon May 17 22:05:57 1993 |
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| 205 | --- new/server/ddx/sun/Imakefile Mon May 17 22:27:23 1993 |
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| 206 | *************** |
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| 207 | *** 43,48 **** |
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| 208 | --- 43,53 ---- |
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| 209 | LinkFile(sunGX.o,sunGX.o.dist) |
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| 210 | #endif |
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| 211 | |
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| 212 | + #if HasGcc && GccVersion > 1 |
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| 213 | + SpecialObjectRule(sunCG2C.o,sunCG2C.c,-fvolatile) |
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| 214 | + SpecialObjectRule(sunCG2M.o,sunCG2M.c,-fvolatile) |
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| 215 | + #endif |
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| 216 | + |
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| 217 | sunInitExtMono.o: $(ICONFIGFILES) |
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| 218 | ObjectFromSpecialSource(sunInitExtMono,../mi/miinitext,-UPEXEXT) |
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| 219 | ObjectFromSpecialSource(sunInitMono,sunInit,-DMONO_ONLY) |
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| 220 | *** mit/server/os/Imakefile Mon May 17 22:05:46 1993 |
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| 221 | --- new/server/os/Imakefile Mon May 17 22:26:02 1993 |
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| 222 | *************** |
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| 223 | *** 132,138 **** |
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| 224 | SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES)) |
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| 225 | SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES)) |
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| 226 | SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES)) |
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| 227 | ! #if defined(SparcArchitecture) && HasGcc |
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| 228 | oscolor.o: $(ICONFIGFILES) |
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| 229 | $(RM) $@ |
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| 230 | cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c |
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| 231 | --- 132,138 ---- |
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| 232 | SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES)) |
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| 233 | SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES)) |
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| 234 | SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES)) |
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| 235 | ! #if defined(SparcArchitecture) && HasGcc && GccVersion <= 1 |
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| 236 | oscolor.o: $(ICONFIGFILES) |
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| 237 | $(RM) $@ |
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| 238 | cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c |
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| 239 | |
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| 240 | |
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| 241 | [This is the older version] |
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| 242 | |
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| 243 | How to compile X11R5 (patch level 11) with GCC version 2: |
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| 244 | |
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| 245 | The patches include support for building the shared libraries with GCC 2 on |
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| 246 | the Sparc and 68k machines. |
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| 247 | |
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| 248 | NOTE: Such shared libraries built with GCC version 2.3 DID NOT WORK |
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| 249 | with executables previously linked using Sun CC! This is because |
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| 250 | neither those executables nor the gcc-compiled shared libraries contain |
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| 251 | libgcc.a. The shared libraries did work with executables linked using |
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| 252 | GCC (running the Sun linker, of course) because GCC tells the linker to |
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| 253 | link in libgcc.a. Because of these limitations the default behavior is |
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| 254 | to NOT build the shared libraries with gcc. |
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| 255 | |
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| 256 | Changes in GCC 2.4 seem to have eliminated the problem, and such a |
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| 257 | shared library now seems work with all executables. If you want the |
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| 258 | gcc-compiled shared libraries turn on "Gcc2BuildLibs" in site.def. If |
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| 259 | you try this, please tell bug-gcc@prep.ai.mit.edu whether it works. |
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| 260 | |
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| 261 | Sun forgot to include a static version of libdl.a with some versions |
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| 262 | of SunOS (4.1 mainly). If you see undefined symbols _dlopen, _dlsym, |
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| 263 | or _dlclose when linking with -lX11, compile and link against the file |
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| 264 | mit/util/misc/dlsym.c in the MIT X11R5 distribution. |
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| 265 | |
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| 266 | mit/config/Imake.tmpl -- Do not set -fstrength-reduce if we have GCC 2. If |
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| 267 | -fstrength-reduce (or any other -f option) is a major win, then it will |
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| 268 | most likely be turned on by -O2 optimization. |
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| 269 | |
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| 270 | mit/config/sunLib.rules -- If HasGcc2 and Gcc2BuildLibs are defined, then |
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| 271 | use gcc -fpic to generate PIC code. Make sure that gcc does not use gas (the |
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| 272 | GNU assembler) when compiling PIC code; gas does not assemble it correctly. |
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| 273 | If you have gas installed where gcc uses it by default, you might have to add |
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| 274 | -B/bin/ to the PositionIndependentCFlags. |
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| 275 | |
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| 276 | mit/config/site.def -- Define HasGcc2 to be YES. |
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| 277 | |
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| 278 | mit/config/sun.cf -- When compiling with GCC 2, use -O2 optimization. |
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| 279 | |
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| 280 | mit/rgb/Imakefile -- No longer need to compile some modules with |
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| 281 | cc on the Sparc since GCC 2 produces proper -fpcc-struct-return code. |
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| 282 | |
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| 283 | mit/server/os/Imakefile -- Likewise. |
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| 284 | |
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| 285 | mit/clients/twm/Imakefile -- fix bad decls of malloc, realloc in gram.c. |
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| 286 | |
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| 287 | *** mit/config/Imake.tmpl.ORIG Tue Dec 31 11:07:56 1991 |
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| 288 | --- mit/config/Imake.tmpl Tue Dec 31 12:30:47 1991 |
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| 289 | *************** |
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| 290 | *** 499,508 **** |
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| 291 | --- 499,512 ---- |
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| 292 | #define HasGcc NO |
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| 293 | #endif |
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| 294 | #ifndef CcCmd |
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| 295 | + #if HasGcc2 |
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| 296 | + #define CcCmd gcc -fpcc-struct-return |
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| 297 | + #else |
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| 298 | #if HasGcc |
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| 299 | #define CcCmd gcc -fstrength-reduce -fpcc-struct-return |
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| 300 | #else |
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| 301 | #define CcCmd cc |
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| 302 | + #endif |
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| 303 | #endif |
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| 304 | #endif |
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| 305 | #if HasFortran |
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| 306 | *** mit/config/sunLib.rules.ORIG Tue Dec 31 11:11:24 1991 |
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| 307 | --- mit/config/sunLib.rules Tue May 5 12:26:12 1992 |
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| 308 | *************** |
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| 309 | *** 23,30 **** |
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| 310 | --- 23,34 ---- |
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| 311 | #define SharedLibraryLoadFlags -assert pure-text |
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| 312 | #endif |
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| 313 | #ifndef PositionIndependentCFlags |
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| 314 | + #if defined(HasGcc2) && defined (Gcc2BuildLibs) |
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| 315 | + #define PositionIndependentCFlags -fpic |
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| 316 | + #else |
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| 317 | #define PositionIndependentCFlags -pic |
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| 318 | #endif |
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| 319 | + #endif |
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| 320 | |
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| 321 | /* |
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| 322 | * InstallSharedLibrary - generate rules to install the shared library. |
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| 323 | *** mit/config/site.def.ORIG Tue Dec 31 11:13:49 1991 |
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| 324 | --- mit/config/site.def Tue Dec 31 12:02:59 1991 |
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| 325 | *************** |
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| 326 | *** 25,31 **** |
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| 327 | |
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| 328 | #ifdef BeforeVendorCF |
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| 329 | |
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| 330 | ! /* #define HasGcc YES */ |
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| 331 | |
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| 332 | #endif /* BeforeVendorCF */ |
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| 333 | |
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| 334 | --- 25,33 ---- |
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| 335 | |
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| 336 | #ifdef BeforeVendorCF |
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| 337 | |
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| 338 | ! #define HasGcc YES |
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| 339 | ! #define HasGcc2 YES |
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| 340 | ! /* #define Gcc2BuildLibs YES */ |
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| 341 | |
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| 342 | #endif /* BeforeVendorCF */ |
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| 343 | |
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| 344 | *** mit/config/sun.cf.ORIG Tue Dec 31 11:13:57 1991 |
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| 345 | --- mit/config/sun.cf Tue May 5 12:29:50 1992 |
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| 346 | *************** |
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| 347 | *** 34,42 **** |
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| 348 | --- 41,61 ---- |
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| 349 | |
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| 350 | #if HasGcc |
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| 351 | |
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| 352 | + #if defined(HasGcc2) |
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| 353 | + #define OptimizedCDebugFlags -O2 |
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| 354 | + /* Leave Alone XXX */ |
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| 355 | + #else |
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| 356 | + #define OptimizedCDebugFlags -O |
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| 357 | #define SharedLibraryCcCmd cc |
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| 358 | #define ExtraLoadFlags -B/usr/bin/ |
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| 359 | #define AllocateLocalDefines /**/ |
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| 360 | + #endif |
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| 361 | + |
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| 362 | + #if !defined(Gcc2BuildLibs) |
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| 363 | + #define SharedLibraryCcCmd cc |
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| 364 | + #define ExtraLoadFlags -B/usr/bin/ |
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| 365 | + #define AllocateLocalDefines /**/ |
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| 366 | + #endif |
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| 367 | |
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| 368 | .c.o: |
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| 369 | $(CC) -c $(CFLAGS) $*.c |
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| 370 | *** mit/rgb/Imakefile.ORIG Wed Jan 15 16:43:18 1992 |
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| 371 | --- mit/rgb/Imakefile Thu Jan 2 13:34:09 1992 |
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| 372 | *************** |
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| 373 | *** 17,23 **** |
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| 374 | #if !(defined(SGIArchitecture) || SystemV4) |
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| 375 | DBMLIB = -ldbm |
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| 376 | #endif |
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| 377 | ! #if defined(SparcArchitecture) && HasGcc |
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| 378 | CC = cc |
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| 379 | CCOPTIONS = /**/ |
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| 380 | EXTRA_LOAD_FLAGS = /**/ |
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| 381 | --- 17,23 ---- |
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| 382 | #if !(defined(SGIArchitecture) || SystemV4) |
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| 383 | DBMLIB = -ldbm |
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| 384 | #endif |
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| 385 | ! #if defined(SparcArchitecture) && HasGcc && !defined(HasGcc2) |
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| 386 | CC = cc |
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| 387 | CCOPTIONS = /**/ |
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| 388 | EXTRA_LOAD_FLAGS = /**/ |
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| 389 | *** mit/server/os/Imakefile.ORIG Wed Jan 15 16:46:23 1992 |
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| 390 | --- mit/server/os/Imakefile Wed Jan 15 16:46:48 1992 |
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| 391 | *************** |
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| 392 | *** 132,138 **** |
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| 393 | SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES)) |
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| 394 | SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES)) |
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| 395 | SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES)) |
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| 396 | ! #if defined(SparcArchitecture) && HasGcc |
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| 397 | oscolor.o: $(ICONFIGFILES) |
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| 398 | $(RM) $@ |
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| 399 | cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c |
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| 400 | --- 132,138 ---- |
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| 401 | SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES)) |
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| 402 | SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES)) |
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| 403 | SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES)) |
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| 404 | ! #if defined(SparcArchitecture) && HasGcc && !defined(HasGcc2) |
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| 405 | oscolor.o: $(ICONFIGFILES) |
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| 406 | $(RM) $@ |
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| 407 | cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c |
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| 408 | *** 1.1 1992/09/08 19:52:07 |
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| 409 | --- mit/server/ddx/sun/Imakefile 1992/09/08 21:10:22 |
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| 410 | *************** |
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| 411 | *** 43,48 **** |
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| 412 | --- 43,53 ---- |
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| 413 | LinkFile(sunGX.o,sunGX.o.dist) |
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| 414 | #endif |
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| 415 | |
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| 416 | + #if HasGcc2 |
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| 417 | + SpecialObjectRule(sunCG2C.o,sunCG2C.c,-fvolatile) |
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| 418 | + SpecialObjectRule(sunCG2M.o,sunCG2M.c,-fvolatile) |
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| 419 | + #endif |
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| 420 | + |
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| 421 | sunInitExtMono.o: $(ICONFIGFILES) |
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| 422 | ObjectFromSpecialSource(sunInitExtMono,../mi/miinitext,-UPEXEXT) |
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| 423 | ObjectFromSpecialSource(sunInitMono,sunInit,-DMONO_ONLY) |
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| 424 | |
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| 425 | *** /tmp/RCSAa24446 Tue Sep 15 12:23:32 1992 |
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| 426 | --- mit/clients/twm/Imakefile Thu Aug 13 18:18:07 1992 |
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| 427 | *************** |
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| 428 | *** 32,41 **** |
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| 429 | --- 32,48 ---- |
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| 430 | ComplexProgramTarget(twm) |
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| 431 | InstallNonExecFile(system.twmrc,$(TWMDIR)) |
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| 432 | |
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| 433 | + #if HasGcc2 && defined (SunArchitecture) |
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| 434 | gram.h gram.c: gram.y |
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| 435 | yacc $(YFLAGS) gram.y |
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| 436 | + sed -e 's/^extern char \*malloc(), \*realloc();//g' y.tab.c >gram.c |
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| 437 | + $(MV) y.tab.h gram.h |
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| 438 | + #else |
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| 439 | + gram.h gram.c: gram.y |
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| 440 | + yacc $(YFLAGS) gram.y |
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| 441 | $(MV) y.tab.c gram.c |
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| 442 | $(MV) y.tab.h gram.h |
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| 443 | + #endif |
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| 444 | |
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| 445 | clean:: |
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| 446 | $(RM) y.tab.h y.tab.c lex.yy.c gram.h gram.c lex.c deftwmrc.c |
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| 447 | |
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