The latest GCC fails if -fcf-protection is used with an x86 (32-bit) target that doesn't support CMOV:
https://gcc.gnu.org/git/?p=gcc.git;a=blobdiff;f=gcc/config/i386/i386-options.c;h=a70f6edf7b0bfa6994db372c2507dbacb5526646;hp=6819a04238965f0ad63b10323823caa2fb8b147c;hb=77d372abec0fbf2cfe922e3140ee3410248f979e;hpb=5ebdd53534db25401473db5f6a0ad30f41410241 At least back to OpenJDK 11, the JDK build forces -march=i586 and the build fails with '-fcf-protection is not compatible with this target' This patch uses -march=i686 instead if -fcf-protection is detected in the compiler flags. It also makes it clear which is being set in the configure output, rather than silently setting the flag. ------------- Commit messages: - JDK-8259949: x86 32-bit build fails when -fcf-protection is passed in the compiler flags Changes: https://git.openjdk.java.net/jdk/pull/2153/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2153&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8259949 Stats: 14 lines in 1 file changed: 12 ins; 0 del; 2 mod Patch: https://git.openjdk.java.net/jdk/pull/2153.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/2153/head:pull/2153 PR: https://git.openjdk.java.net/jdk/pull/2153
