Build: Move _POSIX_C_SOURCE definition to config.h

[libsigrok.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 31efdac5b3d7bd9553c940437b001874ce9ac872..d773d7f201cf674055f61195b6b27236fb7f8820 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -33,9 +33,7 @@ AM_INIT_AUTOMAKE([1.11 -Wall -Werror no-define nostdinc subdir-objects check-new
 AM_SILENT_RULES([yes])
 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 
-AH_TOP([#ifndef SR_CONFIG_H
-#define SR_CONFIG_H    /* To stop multiple inclusions. */])
-AH_BOTTOM([#endif /* SR_CONFIG_H */])
+AC_CANONICAL_HOST
 
 # Checks for programs.
 AC_PROG_CC
@@ -46,12 +44,17 @@ 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([$CC], [sr_cc_version])
 SR_PROG_VERSION([$CXX], [sr_cxx_version])
 
 # Check for optional make features.
-SR_PROG_MAKE_NO_PRINT_DIRECTORY
 SR_PROG_MAKE_ORDER_ONLY
 
 # Initialize libtool.