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Annotation of gcc/README.X11, revision 1.1

1.1     ! root        1: How to compile X11R5 (patch level 9) with GCC version 2:
        !             2: 
        !             3: The patches include support for building the shared libraries with GCC 2 on 
        !             4: the Sparc and 68k machines.
        !             5: 
        !             6: mit/config/Imake.tmpl -- Do not set -fstrength-reduce if we have GCC 2.  If
        !             7: -fstrength-reduce (or any other -f option) is a major win, then it will
        !             8: most likely be turned on by -O2 optimization.
        !             9: 
        !            10: mit/config/sunLib.rules -- If HasGcc2 is defined, then use -fpic to 
        !            11: generate PIC code.
        !            12: 
        !            13: mit/config/site.def -- Define HasGcc2 to be YES.
        !            14: 
        !            15: mit/config/sun.cf -- When compiling with GCC 2, use -O2 optimization.
        !            16: 
        !            17: mit/rgb/Imakefile -- No longer need to compile some modules with 
        !            18: cc on the Sparc since GCC 2 produces proper -fpcc-struct-return code.
        !            19: 
        !            20: mit/server/os/Imakefile -- Likewise.
        !            21: 
        !            22: *** mit/config/Imake.tmpl.ORIG Tue Dec 31 11:07:56 1991
        !            23: --- mit/config/Imake.tmpl      Tue Dec 31 12:30:47 1991
        !            24: ***************
        !            25: *** 499,508 ****
        !            26: --- 499,512 ----
        !            27:   #define HasGcc NO
        !            28:   #endif
        !            29:   #ifndef CcCmd
        !            30: + #if HasGcc2
        !            31: + #define CcCmd gcc -fpcc-struct-return
        !            32: + #else
        !            33:   #if HasGcc
        !            34:   #define CcCmd gcc -fstrength-reduce -fpcc-struct-return 
        !            35:   #else
        !            36:   #define CcCmd cc
        !            37: + #endif
        !            38:   #endif
        !            39:   #endif
        !            40:   #if HasFortran
        !            41: *** mit/config/sunLib.rules.ORIG       Tue Dec 31 11:11:24 1991
        !            42: --- mit/config/sunLib.rules    Thu Jan  2 15:39:29 1992
        !            43: ***************
        !            44: *** 23,29 ****
        !            45: --- 23,33 ----
        !            46:   #define SharedLibraryLoadFlags -assert pure-text
        !            47:   #endif
        !            48:   #ifndef PositionIndependentCFlags
        !            49: + #if defined(HasGcc2)
        !            50: + #define PositionIndependentCFlags -fpic
        !            51: + #else
        !            52:   #define PositionIndependentCFlags -pic
        !            53: + #endif
        !            54:   #endif
        !            55:   
        !            56:   /*
        !            57: *** mit/config/site.def.ORIG   Tue Dec 31 11:13:49 1991
        !            58: --- mit/config/site.def        Tue Dec 31 12:02:59 1991
        !            59: ***************
        !            60: *** 25,31 ****
        !            61:   
        !            62:   #ifdef BeforeVendorCF
        !            63:   
        !            64: ! /* #define HasGcc YES */
        !            65:   
        !            66:   #endif /* BeforeVendorCF */
        !            67:   
        !            68: --- 25,32 ----
        !            69:   
        !            70:   #ifdef BeforeVendorCF
        !            71:   
        !            72: ! #define HasGcc YES 
        !            73: ! #define HasGcc2 YES
        !            74:   
        !            75:   #endif /* BeforeVendorCF */
        !            76:   
        !            77: *** mit/config/sun.cf.ORIG     Tue Dec 31 11:13:57 1991
        !            78: --- mit/config/sun.cf  Wed Jan 15 12:13:53 1992
        !            79: ***************
        !            80: *** 34,42 ****
        !            81: --- 34,47 ----
        !            82:   
        !            83:   #if HasGcc
        !            84:   
        !            85: + #define OptimizedCDebugFlags -O
        !            86: + #if defined(HasGcc2) 
        !            87: + #define OptimizedCDebugFlags -O2
        !            88: + #else
        !            89:   #define SharedLibraryCcCmd cc
        !            90:   #define ExtraLoadFlags -B/usr/bin/
        !            91:   #define AllocateLocalDefines /**/
        !            92: + #endif
        !            93:   
        !            94:   .c.o:
        !            95:        $(CC) -c $(CFLAGS) $*.c
        !            96: 
        !            97: *** mit/rgb/Imakefile.ORIG     Wed Jan 15 16:43:18 1992
        !            98: --- mit/rgb/Imakefile  Thu Jan  2 13:34:09 1992
        !            99: ***************
        !           100: *** 17,23 ****
        !           101:   #if !(defined(SGIArchitecture) || SystemV4)
        !           102:          DBMLIB = -ldbm
        !           103:   #endif
        !           104: ! #if defined(SparcArchitecture) && HasGcc
        !           105:              CC = cc
        !           106:       CCOPTIONS = /**/
        !           107:       EXTRA_LOAD_FLAGS = /**/
        !           108: --- 17,23 ----
        !           109:   #if !(defined(SGIArchitecture) || SystemV4)
        !           110:          DBMLIB = -ldbm
        !           111:   #endif
        !           112: ! #if defined(SparcArchitecture) && HasGcc && !defined(HasGcc2)
        !           113:              CC = cc
        !           114:       CCOPTIONS = /**/
        !           115:       EXTRA_LOAD_FLAGS = /**/
        !           116: *** mit/server/os/Imakefile.ORIG       Wed Jan 15 16:46:23 1992
        !           117: --- mit/server/os/Imakefile    Wed Jan 15 16:46:48 1992
        !           118: ***************
        !           119: *** 132,138 ****
        !           120:   SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES))
        !           121:   SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES))
        !           122:   SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES))
        !           123: ! #if defined(SparcArchitecture) && HasGcc
        !           124:   oscolor.o: $(ICONFIGFILES)
        !           125:        $(RM) $@
        !           126:        cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c
        !           127: --- 132,138 ----
        !           128:   SpecialObjectRule(osinit.o,$(ICONFIGFILES),$(ADM_DEFINES))
        !           129:   SpecialObjectRule(WaitFor.o,$(ICONFIGFILES),$(EXT_DEFINES))
        !           130:   SpecialObjectRule(fonttype.o,$(ICONFIGFILES),$(FONT_DEFINES))
        !           131: ! #if defined(SparcArchitecture) && HasGcc && !defined(HasGcc2)
        !           132:   oscolor.o: $(ICONFIGFILES)
        !           133:        $(RM) $@
        !           134:        cc -c $(DBM_DEFINES) $(CDEBUGFLAGS) $(ALLDEFINES) $*.c
        !           135: 
        !           136: 

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