devel/compat/gcc: pass gmp/mpfr/mpc/isl paths to configure - #321
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September 4, 2026 07:15
Building devel::compat::gcc-cross-bare for aarch64 targets failed with
In file included from gcc/config/aarch64/aarch64-speculation.cc:22:
gcc/system.h:687:10: fatal error: gmp.h: No such file or directory
The rules in gcc/config/aarch64/t-aarch64 reference $(ALL_SPPFLAGS)
instead of $(ALL_CPPFLAGS). The undefined variable expands to nothing so
the include paths that were passed via CPPFLAGS are dropped for these
objects. The typo is still present in current GCC master.
Those rules do keep $(INCLUDES), which contains $(GMPINC) and $(ISLINC).
Therefore locate the libraries the same way as the regular gcc recipe
does, that is by telling configure explicitly where the headers and
libraries are. This also removes a needless deviation between the two
recipes.
Fixes BobBuildTool#320
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September 4, 2026 07:20
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Building
devel::compat::gcc-cross-barefor aarch64 targets failed with:The rules in
gcc/config/aarch64/t-aarch64reference$(ALL_SPPFLAGS)instead of$(ALL_CPPFLAGS). The undefined variable expands to nothing so the include paths that were passed viaCPPFLAGSare dropped for these objects. The typo is still present in current GCC master.Those rules do keep
$(INCLUDES), which contains$(GMPINC)and$(ISLINC). Therefore locate the libraries the same way as the regulargccrecipe does, that is by telling configure explicitly where the headers and libraries are. This also removes a needless deviation between the two recipes.Fixes #320