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| author |  Fabrice Fontaine <fontaine.fabrice@gmail.com> | 2022-03-30 21:56:20 +0200 |
|---|---|---|
| committer |  GitHub <noreply@github.com> | 2022-03-30 15:56:20 -0400 |
| commit | b9ad9bbfed92199a1a58504306d026cd2597539e (patch) | |
| tree | ad4c5917f1b1e4e655d668817728824d1be9c661 /absl/random/internal | |
| parent | cfccbd2eb5b051f3c33f1a5bb441ec3029cb0a24 (diff) | |
Fix build with uclibc-ng (#1145)
uclibc-ng doesn't provide getauxval which results in the following build
failure on arm or ppc with any user of abseil-cpp such as grpc:
/home/buildroot/autobuild/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabi/10.3.0/../../../../arm-buildroot-linux-uclibcgnueabi/bin/ld: /home/buildroot/autobuild/instance-0/output-1/host/arm-buildroot-linux-uclibcgnueabi/sysroot/usr/lib/libabsl_random_internal_randen_hwaes.so.2111.0.0: undefined reference to `getauxval'
To fix this build failure, check that __UCLIBC__ is not defined before
using getauxval (as Babel is not able to check function availability)
Fixes:
- http://autobuild.buildroot.org/results/775f3ca3dedebff29e212b29dfa896b7613b7a02
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Diffstat (limited to 'absl/random/internal')
| -rw-r--r-- | absl/random/internal/randen_detect.cc | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/absl/random/internal/randen_detect.cc b/absl/random/internal/randen_detect.cc index 9bb58fc6..6dababa3 100644 --- a/absl/random/internal/randen_detect.cc +++ b/absl/random/internal/randen_detect.cc @@ -24,6 +24,11 @@ #include "absl/random/internal/platform.h" +#if !defined(__UCLIBC__) && defined(__GLIBC__) && \ + (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 16)) +#define ABSL_HAVE_GETAUXVAL +#endif + #if defined(ABSL_ARCH_X86_64) #define ABSL_INTERNAL_USE_X86_CPUID #elif defined(ABSL_ARCH_PPC) || defined(ABSL_ARCH_ARM) || \ @@ -31,7 +36,7 @@ #if defined(__ANDROID__) #define ABSL_INTERNAL_USE_ANDROID_GETAUXVAL #define ABSL_INTERNAL_USE_GETAUXVAL -#elif defined(__linux__) +#elif defined(__linux__) && defined(ABSL_HAVE_GETAUXVAL) #define ABSL_INTERNAL_USE_LINUX_GETAUXVAL #define ABSL_INTERNAL_USE_GETAUXVAL #endif |