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| author | cypherpunks <cypherpunks@torproject.org> | 2016-06-17 13:43:25 +0000 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2016-06-17 10:17:44 -0400 |
| commit | 94762e37b950f3ce1696c78dd4f7a89b6d05f1ac (patch) | |
| tree | e9b3517710fc601d2e7cac22d0620498cc145a0c /configure.ac | |
| parent | 9a63f059b9eefa910a8c74b4936623dd37e946dd (diff) | |
| download | tor-94762e37b950f3ce1696c78dd4f7a89b6d05f1ac.tar.gz tor-94762e37b950f3ce1696c78dd4f7a89b6d05f1ac.zip | |
Use the Autoconf macro AC_USE_SYSTEM_EXTENSIONS
The Autoconf macro AC_USE_SYSTEM_EXTENSIONS defines preprocessor macros
which turn on extensions to C and POSIX. The macro also makes it easier
for developers to use the extensions without needing (or forgetting) to
define them manually.
The macro can be safely used because it was introduced in Autoconf 2.60
and Tor requires Autoconf 2.63 and above.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/configure.ac b/configure.ac index 386fcdd132..6d721a2fc5 100644 --- a/configure.ac +++ b/configure.ac @@ -16,6 +16,7 @@ AM_INIT_AUTOMAKE([foreign 1.11 subdir-objects]) m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) AC_CONFIG_HEADERS([orconfig.h]) +AC_USE_SYSTEM_EXTENSIONS AC_CANONICAL_HOST PKG_PROG_PKG_CONFIG @@ -1552,9 +1553,6 @@ int main(int c, char **v) { puts(__FUNCTION__); }])], AC_CACHE_CHECK([whether we have extern char **environ already declared], tor_cv_have_environ_declared, AC_COMPILE_IFELSE([AC_LANG_SOURCE([ -/* We define _GNU_SOURCE here because it is also defined in compat.c. - * Without it environ doesn't get declared. */ -#define _GNU_SOURCE #ifdef HAVE_UNISTD_H #include <unistd.h> #endif |