Annotation of gcc/README.X11, revision 1.1.1.1

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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