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- How to compile X11R5 (patch level 11) with GCC version 2:
-
- The patches include support for building the shared libraries with GCC 2 on
- the Sparc and 68k machines. NOTE: Such shared libraries DO NOT WORK
- with executables previously linked using Sun CC! This is because
- neither those executables nor the gcc-compiled shared libraries contain
- libgcc.a. The shared libraries do work with executables linked using
- GCC (running the Sun linker, of course) because GCC tells the linker to
- link in libgcc.a. Because of these limitations the default behavior is
- to NOT build the shared libraries with gcc. If you want the gcc-compiled
- shared libraries turn on "Gcc2BuildLibs" in site.def
-
- If you want to build a shared library that works with executables
- linked with Sun CC, you will have to arrange to include libgcc.a in
- the shared libraries. The instructions below do not handle this.
-
- Sun forgot to include a static version of libdl.a with some versions
- of SunOS (4.1 mainly). If you see undefined symbols _dlopen, _dlsym,
- or _dlclose when linking with -lX11, compile and link against the file
- mit/util/misc/dlsym.c in the MIT X11R5 distribution.
-
- mit/config/Imake.tmpl -- Do not set -fstrength-reduce if we have GCC 2. If
- -fstrength-reduce (or any other -f option) is a major win, then it will
- most likely be turned on by -O2 optimization.
-
- mit/config/sunLib.rules -- If HasGcc2 and Gcc2BuildLibs are defined, then
- use gcc -fpic to generate PIC code. Make sure that gcc does not use gas (the
- GNU assembler) when compiling PIC code; gas does not assemble it correctly.
- If you have gas installed where gcc uses it by default, you might have to add
- -B/bin/ to the PositionIndependentCFlags.
-
- mit/config/site.def -- Define HasGcc2 to be YES.
-
- mit/config/sun.cf -- When compiling with GCC 2, use -O2 optimization.
-
- mit/rgb/Imakefile -- No longer need to compile some modules with
- cc on the Sparc since GCC 2 produces proper -fpcc-struct-return code.
-
- mit/server/os/Imakefile -- Likewise.
-
- mit/clients/twm/Imakefile -- fix bad decls of malloc, realloc in gram.c.
-
- *** mit/config/Imake.tmpl.ORIG Tue Dec 31 11:07:56 1991
- --- mit/config/Imake.tmpl Tue Dec 31 12:30:47 1991
- ***************
- *** 499,508 ****
- --- 499,512 ----
- #define HasGcc NO
- #endif
- #ifndef CcCmd
- + #if HasGcc2
- + #define CcCmd gcc -fpcc-struct-return
- + #else
- #if HasGcc
- #define CcCmd gcc -fstrength-reduce -fpcc-struct-return
- #else
- #define CcCmd cc
- + #endif
- #endif
- #endif
- #if HasFortran
- *** mit/config/sunLib.rules.ORIG Tue Dec 31 11:11:24 1991
- --- mit/config/sunLib.rules Tue May 5 12:26:12 1992
- ***************
- *** 23,30 ****
- --- 23,34 ----
- #define SharedLibraryLoadFlags -assert pure-text
- #endif
- #ifndef PositionIndependentCFlags
- + #if defined(HasGcc2) && defined (Gcc2BuildLibs)
- + #define PositionIndependentCFlags -fpic
- + #else
- #define PositionIndependentCFlags -pic
- #endif
- + #endif
-
- /*
- * InstallSharedLibrary - generate rules to install the shared library.
- *** mit/config/site.def.ORIG Tue Dec 31 11:13:49 1991
- --- mit/config/site.def Tue Dec 31 12:02:59 1991
- ***************
- *** 25,31 ****
-
- #ifdef BeforeVendorCF
-
- ! /* #define HasGcc YES */
-
- #endif /* BeforeVendorCF */
-
- --- 25,33 ----
-
- #ifdef BeforeVendorCF
-
- ! #define HasGcc YES
- ! #define HasGcc2 YES
- ! /* #define Gcc2BuildLibs YES */
-
- #endif /* BeforeVendorCF */
-
- *** mit/config/sun.cf.ORIG Tue Dec 31 11:13:57 1991
- --- mit/config/sun.cf Tue May 5 12:29:50 1992
- ***************
- *** 34,42 ****
- --- 41,61 ----
-
- #if HasGcc
-
- + #if defined(HasGcc2)
- + #define OptimizedCDebugFlags -O2
- + /* Leave Alone XXX */
- + #else
- + #define OptimizedCDebugFlags -O
- #define SharedLibraryCcCmd cc
- #define ExtraLoadFlags -B/usr/bin/
- #define AllocateLocalDefines /**/
- + #endif
- +
- + #if !defined(Gcc2BuildLibs)
- + #define SharedLibraryCcCmd cc
- + #define ExtraLoadFlags -B/usr/bin/
- + #define AllocateLocalDefines /**/
- + #endif
-
- .c.o:
- $(CC) -c $(CFLAGS) $*.c
- *** mit/rgb/Imakefile.ORIG Wed Jan 15 16:43:18 1992
- --- mit/rgb/Imakefile Thu Jan 2 13:34:09 1992
- ***************
- *** 17,23 ****
- #if !(defined(SGIArchitecture) || SystemV4)
- DBMLIB = -ldbm
- #endif
- ! #if defined(SparcArchitecture) && HasGcc
- CC = cc
- CCOPTIONS = /**/
- EXTRA_LOAD_FLAGS = /**/
- --- 17,23 ----
- #if !(defined(SGIArchitecture) || SystemV4)
- DBMLIB = -ldbm
- #endif
- ! #if defined(SparcArchitecture) && HasGcc && !defined(HasGcc2)
- CC = cc
- CCOPTIONS = /**/
- EXTRA_LOAD_FLAGS = /**/
- *** mit/server/os/Imakefile.ORIG Wed Jan 15 16:46:23 1992
- --- mit/server/os/Imakefile Wed Jan 15 16:46:48 1992
- ***************
- *** 132,138 ****
- SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES))
- SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES))
- SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES))
- ! #if defined(SparcArchitecture) && HasGcc
- oscolor.o: $(ICONFIGFILES)
- $(RM) $@
- cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c
- --- 132,138 ----
- SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES))
- SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES))
- SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES))
- ! #if defined(SparcArchitecture) && HasGcc && !defined(HasGcc2)
- oscolor.o: $(ICONFIGFILES)
- $(RM) $@
- cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c
- *** 1.1 1992/09/08 19:52:07
- --- mit/server/ddx/sun/Imakefile 1992/09/08 21:10:22
- ***************
- *** 43,48 ****
- --- 43,53 ----
- LinkFile(sunGX.o,sunGX.o.dist)
- #endif
-
- + #if HasGcc2
- + SpecialObjectRule(sunCG2C.o,sunCG2C.c,-fvolatile)
- + SpecialObjectRule(sunCG2M.o,sunCG2M.c,-fvolatile)
- + #endif
- +
- sunInitExtMono.o: $(ICONFIGFILES)
- ObjectFromSpecialSource(sunInitExtMono,../mi/miinitext,-UPEXEXT)
- ObjectFromSpecialSource(sunInitMono,sunInit,-DMONO_ONLY)
-
- *** /tmp/RCSAa24446 Tue Sep 15 12:23:32 1992
- --- mit/clients/twm/Imakefile Thu Aug 13 18:18:07 1992
- ***************
- *** 32,41 ****
- --- 32,48 ----
- ComplexProgramTarget(twm)
- InstallNonExecFile(system.twmrc,$(TWMDIR))
-
- + #if HasGcc2 && defined (SunArchitecture)
- gram.h gram.c: gram.y
- yacc $(YFLAGS) gram.y
- + sed -e 's/^extern char \*malloc(), \*realloc();//g' y.tab.c >gram.c
- + $(MV) y.tab.h gram.h
- + #else
- + gram.h gram.c: gram.y
- + yacc $(YFLAGS) gram.y
- $(MV) y.tab.c gram.c
- $(MV) y.tab.h gram.h
- + #endif
-
- clean::
- $(RM) y.tab.h y.tab.c lex.yy.c gram.h gram.c lex.c deftwmrc.c
-
-