X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=configure.ac;h=d773d7f201cf674055f61195b6b27236fb7f8820;hb=56c8705e37314dafe35b680d2254b6f844e0ecc2;hp=31efdac5b3d7bd9553c940437b001874ce9ac872;hpb=96e05afa77df9d3ee49ba602503476a798f4db06;p=libsigrok.git

diff --git a/configure.ac b/configure.ac
index 31efdac5..d773d7f2 100644
--- 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.