X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=configure.ac;h=53e8bc1abb660f57e1d7bb1dce9d253023a9fe18;hp=a57cea57f416e5e7301510c020ae8c26220d12ff;hb=fdfc532ecd49fc3353627ef4a093366e73d6b91a;hpb=367843620d039ad183bc4d7c33d91c316d717621

diff --git a/configure.ac b/configure.ac
index a57cea5..53e8bc1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -33,10 +33,6 @@ AM_INIT_AUTOMAKE([1.11 -Wall -Werror no-define subdir-objects check-news color-t
 AM_SILENT_RULES([yes])
 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 
-AH_TOP([#ifndef SRD_CONFIG_H
-#define SRD_CONFIG_H    /* To stop multiple inclusions. */])
-AH_BOTTOM([#endif /* SRD_CONFIG_H */])
-
 AC_CANONICAL_HOST
 
 # Checks for programs.
@@ -47,6 +43,12 @@ AC_PROG_LN_S
 # Required for per-target flags or subdir-objects with C sources.
 AM_PROG_CC_C_O
 
+# Set the standard the C library headers should conform to.
+AH_VERBATIM([_POSIX_C_SOURCE], [/* The targeted POSIX standard. */
+#ifndef _POSIX_C_SOURCE
+# define _POSIX_C_SOURCE 200112L
+#endif])
+
 # Get compiler versions.
 SR_PROG_VERSION([$CC], [srd_cc_version])