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Up to [GCC 2.x] / gcc|
Return to README.X11 CVS log | Up to [GCC 2.x] / gcc |
1.1.1.3 root 1: How to compile X11R5 (patch level 11) with GCC version 2:
1.1 root 2:
3: The patches include support for building the shared libraries with GCC 2 on
1.1.1.3 root 4: the Sparc and 68k machines. NOTE: Such shared libraries DO NOT WORK
5: with executables previously linked using Sun CC! This is because
6: neither those executables nor the gcc-compiled shared libraries contain
7: libgcc.a. The shared libraries do work with executables linked using
8: GCC (running the Sun linker, of course) because GCC tells the linker to
9: link in libgcc.a. Because of these limitations the default behavior is
10: to NOT build the shared libraries with gcc. If you want the gcc-compiled
11: shared libraries turn on "Gcc2BuildLibs" in site.def
12:
13: If you want to build a shared library that works with executables
14: linked with Sun CC, you will have to arrange to include libgcc.a in
15: the shared libraries. The instructions below do not handle this.
1.1 root 16:
1.1.1.2 root 17: Sun forgot to include a static version of libdl.a with some versions
18: of SunOS (4.1 mainly). If you see undefined symbols _dlopen, _dlsym,
19: or _dlclose when linking with -lX11, compile and link against the file
20: mit/util/misc/dlsym.c in the MIT X11R5 distribution.
21:
1.1 root 22: mit/config/Imake.tmpl -- Do not set -fstrength-reduce if we have GCC 2. If
23: -fstrength-reduce (or any other -f option) is a major win, then it will
24: most likely be turned on by -O2 optimization.
25:
1.1.1.3 root 26: mit/config/sunLib.rules -- If HasGcc2 and Gcc2BuildLibs are defined, then
27: use gcc -fpic to generate PIC code. Make sure that gcc does not use gas (the
28: GNU assembler) when compiling PIC code; gas does not assemble it correctly.
29: If you have gas installed where gcc uses it by default, you might have to add
1.1.1.2 root 30: -B/bin/ to the PositionIndependentCFlags.
1.1 root 31:
32: mit/config/site.def -- Define HasGcc2 to be YES.
33:
34: mit/config/sun.cf -- When compiling with GCC 2, use -O2 optimization.
35:
36: mit/rgb/Imakefile -- No longer need to compile some modules with
37: cc on the Sparc since GCC 2 produces proper -fpcc-struct-return code.
38:
39: mit/server/os/Imakefile -- Likewise.
40:
1.1.1.4 ! root 41: mit/clients/twm/Imakefile -- fix bad decls of malloc, realloc in gram.c.
! 42:
1.1 root 43: *** mit/config/Imake.tmpl.ORIG Tue Dec 31 11:07:56 1991
44: --- mit/config/Imake.tmpl Tue Dec 31 12:30:47 1991
45: ***************
46: *** 499,508 ****
47: --- 499,512 ----
48: #define HasGcc NO
49: #endif
50: #ifndef CcCmd
51: + #if HasGcc2
52: + #define CcCmd gcc -fpcc-struct-return
53: + #else
54: #if HasGcc
55: #define CcCmd gcc -fstrength-reduce -fpcc-struct-return
56: #else
57: #define CcCmd cc
58: + #endif
59: #endif
60: #endif
61: #if HasFortran
62: *** mit/config/sunLib.rules.ORIG Tue Dec 31 11:11:24 1991
1.1.1.3 root 63: --- mit/config/sunLib.rules Tue May 5 12:26:12 1992
1.1 root 64: ***************
1.1.1.3 root 65: *** 23,30 ****
66: --- 23,34 ----
1.1 root 67: #define SharedLibraryLoadFlags -assert pure-text
68: #endif
69: #ifndef PositionIndependentCFlags
1.1.1.3 root 70: + #if defined(HasGcc2) && defined (Gcc2BuildLibs)
1.1 root 71: + #define PositionIndependentCFlags -fpic
72: + #else
73: #define PositionIndependentCFlags -pic
74: #endif
1.1.1.3 root 75: + #endif
1.1 root 76:
77: /*
1.1.1.3 root 78: * InstallSharedLibrary - generate rules to install the shared library.
1.1 root 79: *** mit/config/site.def.ORIG Tue Dec 31 11:13:49 1991
80: --- mit/config/site.def Tue Dec 31 12:02:59 1991
81: ***************
82: *** 25,31 ****
83:
84: #ifdef BeforeVendorCF
85:
86: ! /* #define HasGcc YES */
87:
88: #endif /* BeforeVendorCF */
89:
1.1.1.3 root 90: --- 25,33 ----
1.1 root 91:
92: #ifdef BeforeVendorCF
93:
94: ! #define HasGcc YES
95: ! #define HasGcc2 YES
1.1.1.3 root 96: ! /* #define Gcc2BuildLibs YES */
1.1 root 97:
98: #endif /* BeforeVendorCF */
99:
100: *** mit/config/sun.cf.ORIG Tue Dec 31 11:13:57 1991
1.1.1.3 root 101: --- mit/config/sun.cf Tue May 5 12:29:50 1992
1.1 root 102: ***************
103: *** 34,42 ****
1.1.1.3 root 104: --- 41,61 ----
1.1 root 105:
106: #if HasGcc
107:
108: + #if defined(HasGcc2)
1.1.1.3 root 109: + #define OptimizedCDebugFlags -O2
110: + /* Leave Alone XXX */
111: + #else
112: + #define OptimizedCDebugFlags -O
1.1 root 113: #define SharedLibraryCcCmd cc
114: #define ExtraLoadFlags -B/usr/bin/
115: #define AllocateLocalDefines /**/
116: + #endif
1.1.1.3 root 117: +
118: + #if !defined(Gcc2BuildLibs)
119: + #define SharedLibraryCcCmd cc
120: + #define ExtraLoadFlags -B/usr/bin/
121: + #define AllocateLocalDefines /**/
122: + #endif
1.1 root 123:
124: .c.o:
125: $(CC) -c $(CFLAGS) $*.c
126: *** mit/rgb/Imakefile.ORIG Wed Jan 15 16:43:18 1992
127: --- mit/rgb/Imakefile Thu Jan 2 13:34:09 1992
128: ***************
129: *** 17,23 ****
130: #if !(defined(SGIArchitecture) || SystemV4)
131: DBMLIB = -ldbm
132: #endif
133: ! #if defined(SparcArchitecture) && HasGcc
134: CC = cc
135: CCOPTIONS = /**/
136: EXTRA_LOAD_FLAGS = /**/
137: --- 17,23 ----
138: #if !(defined(SGIArchitecture) || SystemV4)
139: DBMLIB = -ldbm
140: #endif
141: ! #if defined(SparcArchitecture) && HasGcc && !defined(HasGcc2)
142: CC = cc
143: CCOPTIONS = /**/
144: EXTRA_LOAD_FLAGS = /**/
145: *** mit/server/os/Imakefile.ORIG Wed Jan 15 16:46:23 1992
146: --- mit/server/os/Imakefile Wed Jan 15 16:46:48 1992
147: ***************
148: *** 132,138 ****
149: SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES))
150: SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES))
151: SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES))
152: ! #if defined(SparcArchitecture) && HasGcc
153: oscolor.o: $(ICONFIGFILES)
154: $(RM) $@
155: cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c
156: --- 132,138 ----
157: SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES))
158: SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES))
159: SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES))
160: ! #if defined(SparcArchitecture) && HasGcc && !defined(HasGcc2)
161: oscolor.o: $(ICONFIGFILES)
162: $(RM) $@
163: cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c
1.1.1.4 ! root 164: *** 1.1 1992/09/08 19:52:07
! 165: --- mit/server/ddx/sun/Imakefile 1992/09/08 21:10:22
! 166: ***************
! 167: *** 43,48 ****
! 168: --- 43,53 ----
! 169: LinkFile(sunGX.o,sunGX.o.dist)
! 170: #endif
! 171:
! 172: + #if HasGcc2
! 173: + SpecialObjectRule(sunCG2C.o,sunCG2C.c,-fvolatile)
! 174: + SpecialObjectRule(sunCG2M.o,sunCG2M.c,-fvolatile)
! 175: + #endif
! 176: +
! 177: sunInitExtMono.o: $(ICONFIGFILES)
! 178: ObjectFromSpecialSource(sunInitExtMono,../mi/miinitext,-UPEXEXT)
! 179: ObjectFromSpecialSource(sunInitMono,sunInit,-DMONO_ONLY)
! 180:
! 181: *** /tmp/RCSAa24446 Tue Sep 15 12:23:32 1992
! 182: --- mit/clients/twm/Imakefile Thu Aug 13 18:18:07 1992
! 183: ***************
! 184: *** 32,41 ****
! 185: --- 32,48 ----
! 186: ComplexProgramTarget(twm)
! 187: InstallNonExecFile(system.twmrc,$(TWMDIR))
! 188:
! 189: + #if HasGcc2 && defined (SunArchitecture)
! 190: gram.h gram.c: gram.y
! 191: yacc $(YFLAGS) gram.y
! 192: + sed -e 's/^extern char \*malloc(), \*realloc();//g' y.tab.c >gram.c
! 193: + $(MV) y.tab.h gram.h
! 194: + #else
! 195: + gram.h gram.c: gram.y
! 196: + yacc $(YFLAGS) gram.y
! 197: $(MV) y.tab.c gram.c
! 198: $(MV) y.tab.h gram.h
! 199: + #endif
! 200:
! 201: clean::
! 202: $(RM) y.tab.h y.tab.c lex.yy.c gram.h gram.c lex.c deftwmrc.c
! 203:
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