rs6000: Fix up build of non-glibc/aix/darwin powerpc* targets [PR104298]
As reported by Martin, while David has added OPTION_GLIBC define to aix and Iain to darwin, all the other non-linux targets now fail because rs6000.md macro isn't defined. One possibility is to define this macro in option-defaults.h which on rs6000 targets is included last, then we don't need to define it in aix/darwin headers and for targets using linux.h or linux64.h it will DTRT too. The other option is the first 2 hunks + changing the 3 if (!OPTION_GLIBC) FAIL; cases in rs6000.md to e.g. #ifdef OPTION_GLIBC if (!OPTION_GLIBC) #endif FAIL; or to: #ifdef OPTION_GLIBC if (!OPTION_GLIBC) #else if (true) #endif FAIL; (the latter case if Richi wants to push the -Wunreachable-code changes for GCC 13). 2022-01-31 Jakub Jelinek <jakub@redhat.com> PR target/104298 * config/rs6000/aix.h (OPTION_GLIBC): Remove. * config/rs6000/darwin.h (OPTION_GLIBC): Likewise. * config/rs6000/option-defaults.h (OPTION_GLIBC): Define to 0 if not already defined.
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@ -23,7 +23,6 @@
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#define DEFAULT_ABI ABI_AIX
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#undef TARGET_AIX
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#define TARGET_AIX 1
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#define OPTION_GLIBC 0
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/* Linux64.h wants to redefine TARGET_AIX based on -m64, but it can't be used
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in the #if conditional in options-default.h, so provide another macro. */
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@ -34,8 +34,6 @@
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#endif
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#endif
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#define OPTION_GLIBC 0
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/* The object file format is Mach-O. */
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#define TARGET_OBJECT_FORMAT OBJECT_MACHO
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@ -62,3 +62,9 @@
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{"cpu_32", "%{" OPT_ARCH32 ":%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
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{"cpu_64", "%{" OPT_ARCH64 ":%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
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{"float", "%{!msoft-float:%{!mhard-float:-m%(VALUE)-float}}" }
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/* rs6000.md uses OPTION_GLIBC unconditionally, while it is defined only in
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linux{,64}.h. Define fallback for other targets here. */
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#ifndef OPTION_GLIBC
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#define OPTION_GLIBC 0
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#endif
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