X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=configure.ac;h=53e8bc1abb660f57e1d7bb1dce9d253023a9fe18;hb=544038d90e05c03f6f914c7771ee52dd85784ca8;hp=fe5d5fb866e1d2237fb428ccd21c61fd4c9345ee;hpb=a654ef6e407f1f914a6ec9b104a5e4cf9b84524c;p=libsigrokdecode.git

diff --git a/configure.ac b/configure.ac
index fe5d5fb..53e8bc1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -33,9 +33,7 @@ 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.
 AC_PROG_CC
@@ -45,6 +43,15 @@ 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])
+
 # Initialize libtool.
 LT_INIT
 
@@ -111,6 +118,8 @@ SR_ARG_ENABLE_WARNINGS([SRD_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototype
 SRD_EXTRA_LIBS=
 SR_SEARCH_LIBS([SRD_EXTRA_LIBS], [pow], [m])
 
+AC_SYS_LARGEFILE
+
 ##############################
 ##  Finalize configuration  ##
 ##############################
@@ -136,6 +145,11 @@ libsigrokdecode configuration summary:
  - Prefix.......................... $prefix
  - Building on..................... $build
  - Building for.................... $host
+
+Compile configuration:
+ - C compiler...................... $CC
+ - C compiler version.............. $srd_cc_version
+ - C compiler flags................ $CFLAGS
  - Additional C compiler flags..... $SRD_EXTRA_CFLAGS
  - C compiler warnings............. $SRD_WFLAGS