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author | Rich Felker <dalias@aerifal.cx> | 2013-04-06 17:50:37 -0400 |
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committer | Rich Felker <dalias@aerifal.cx> | 2013-04-06 17:50:37 -0400 |
commit | b4ea63856a6af3d1bcc2db12537785371ac2024c (patch) | |
tree | 689c9acbdd5e5339261988fb4f6ba007eb345d6b /include/errno.h | |
parent | 5c5ac810c31a77dd17b95bb93e13487a3c1c1433 (diff) | |
download | musl-b4ea63856a6af3d1bcc2db12537785371ac2024c.tar.gz musl-b4ea63856a6af3d1bcc2db12537785371ac2024c.tar.bz2 musl-b4ea63856a6af3d1bcc2db12537785371ac2024c.tar.xz musl-b4ea63856a6af3d1bcc2db12537785371ac2024c.zip |
add support for program_invocation[_short]_name
this is a bit ugly, and the motivation for supporting it is
questionable. however the main factors were:
1. it will be useful to have this for certain internal purposes
anyway -- things like syslog.
2. applications can just save argv[0] in main, but it's hard to fix
non-portable library code that's depending on being able to get the
invocation name without the main application's help.
Diffstat (limited to 'include/errno.h')
-rw-r--r-- | include/errno.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/errno.h b/include/errno.h index 9e1e3202..0361b33a 100644 --- a/include/errno.h +++ b/include/errno.h @@ -5,6 +5,8 @@ extern "C" { #endif +#include <features.h> + #include <bits/errno.h> #ifdef __GNUC__ @@ -13,6 +15,10 @@ __attribute__((const)) int *__errno_location(void); #define errno (*__errno_location()) +#ifdef _GNU_SOURCE +extern char *program_invocation_short_name, *program_invocation_name; +#endif + #ifdef __cplusplus } #endif |