> -----Original Message----- > From: H.J. Lu [mailto:hjl.to...@gmail.com] > Sent: Saturday, December 15, 2012 01:20 > To: Joey Ye > Cc: gcc-patches@gcc.gnu.org; Joseph Prostko > Subject: Re: [PATCH, libgcc] Make possible to disable JCR in crtstuff.c > Can't you do > > +# Disable jcr section if we're not building java > +case ,${enable_languages}, in > + *java*) > + use_jcr_section=1 > + ;; > + *) > + use_jcr_section=0 > + ;; > +esac > > in libgcc/configure.ac? > > BTW, checking *,java,* is wrong for > > --enable-languages=c,c++,java Oh yes, it works. I didn't expect top level configure expands --enable-languages=all to individual languages. Patch simplified.
However, I noticed that patterns like "*,java,*)" are widely used in configure and they do work. Can you explain more why it is wrong? * libgcc/Makefile.in: Include TARGET_USE_JCR_SECTION in CFLAGS. * libgcc/configure.ac (use_jcr_section): New variable. * libgcc/configure: Regenerated. * libgcc/crtstuff.c: Check TARGET_USE_JCR_SECTION.
jcr_diable_non_java-1217.patch
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