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| author | Nick Alcock <nick.alcock@oracle.com> | 2019-06-04 15:04:49 +0100 |
|---|---|---|
| committer | Nick Alcock <nick.alcock@oracle.com> | 2019-06-04 17:05:08 +0100 |
| commit | ad118caa9f690114d11384b0813f30980cc333f3 (patch) | |
| tree | 3261c7175a31eb17ae72c2a8f0d107c4d1ad9f59 /libctf/configure.ac | |
| parent | 6b22174ff163b828a2069f22353018ca97fc0fb4 (diff) | |
| download | binutils-gdb-ad118caa9f690114d11384b0813f30980cc333f3.tar.gz | |
libctf: work on platforms without O_CLOEXEC.
(Not tested on any such platforms, since I don't have access to any at
the moment. Testing encouraged.)
libctf/
* configure.ac: Check for O_CLOEXEC.
* ctf-decls.h (O_CLOEXEC): Define (to 0), if need be.
* config.h.in: Regenerate.
Diffstat (limited to 'libctf/configure.ac')
| -rw-r--r-- | libctf/configure.ac | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libctf/configure.ac b/libctf/configure.ac index beb90ba75cc..2a1a80b7ecb 100644 --- a/libctf/configure.ac +++ b/libctf/configure.ac @@ -133,6 +133,22 @@ esac AM_CONDITIONAL(NEED_CTF_QSORT_R, test "${ac_cv_libctf_qsort_r_signature}" = unknown) +AC_CACHE_CHECK([for O_CLOEXEC], [ac_cv_libctf_macro_O_CLOEXEC], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[#include <fcntl.h> + #ifndef O_CLOEXEC + choke me; + #endif + ]], + [[return O_CLOEXEC;]])], + [ac_cv_libctf_macro_O_CLOEXEC=yes], + [ac_cv_libctf_macro_O_CLOEXEC=no])]) + +if test $ac_cv_libctf_macro_O_CLOEXEC = yes; then + AC_DEFINE([HAVE_O_CLOEXEC], 1, + [Whether the platform has a definition of O_CLOEXEC.]) +fi + AC_CONFIG_FILES(Makefile) AC_CONFIG_HEADERS(config.h) AC_OUTPUT |