On Sun, Sep 21, 2014 at 10:48:01PM +0200, Jörg Krause wrote: > Some C libraries, eg glibc, uclibc, and musl, uses feature test macros > to expose definitions conforming to the standards ISO C, POSIX and > extensions. According to which feature test macros are defined by the > user or the compiler, a header file, eg <features.h>, used by these > libraries internally defines various other macros. > > glibc and uclibc also defines release test macros, eg __GLIBC__ and > __UCLIBC__ in <features.h>. musl does not have (and does not want) a > macro __MUSL__. Therefore it is not possible to check for the musl > library. > > However, building FFmpeg with musl needs the feature test macro > _XOPEN_SOURCE=600 to be defined. > > Signed-off-by: Jörg Krause <jkra...@posteo.de> > --- > Changes v2 -> v3: > - set _XOPEN_SOURCE as default in case no C library can be detected > > Changes v1 -> v2: > - do not set _XOPEN_SOURCE twice for glibc and uclibc > --- > configure | 3 +++ > 1 file changed, 3 insertions(+)
applied thanks [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB I have never wished to cater to the crowd; for what I know they do not approve, and what they approve I do not know. -- Epicurus
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