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Some gcc.target/i386 tests requires the mmap feature, but that's not enough for the test to be able to call sysconf. This patch introduces a sysconf feature, analogous to mmap, and adds it to tests in gcc.target/i386 that call sysconf. There are other tests within gcc.dg and g++.dg that call sysconf, but I haven't added the tag to them, because they already cover it with target triplets. I was a little nervous about dropping the triplets, and saw how they implied sysconf, so I left those alone. for gcc/ChangeLog * doc/sourcebuild.texi (sysconf): New effective target. for gcc/testsuite/ChangeLog * lib/target-supports.exp (check_effective_target_sysconf): New. * gcc.target/i386/pr95443-1.c: Require it. * gcc.target/i386/pr95443-2.c: Likewise. * gcc.target/i386/sse2-mmx-maskmovq.c: Likewise. * gcc.target/i386/strncmp-1.c: Likewise.
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