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-rw-r--r--configure.ac4
1 files changed, 4 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 4768f88..20c566c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,6 +30,10 @@ AC_INIT([libXcursor], [1.1.14],
[https://bugs.freedesktop.org/enter_bug.cgi?product=xorg],[libXcursor])
AC_CONFIG_SRCDIR([Makefile.am])
AC_CONFIG_HEADERS([config.h include/X11/Xcursor/Xcursor.h])
+# Set common system defines for POSIX extensions, such as _GNU_SOURCE
+# Must be called before any macros that run the compiler (like AC_PROG_LIBTOOL)
+# to avoid autoconf errors.
+AC_USE_SYSTEM_EXTENSIONS
# Initialize Automake
AM_INIT_AUTOMAKE([foreign dist-bzip2])