Compile with -pedantic.

[libserialport.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 91174fc6a8fbde25ca686e33f0cf70b42fcf9f9d..457d6f910f40531cd2f79119644abfef347ab787 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -23,8 +23,9 @@ AC_PREREQ([2.63])
 
 # libserialport package version number (NOT the same as shared lib version!).
 m4_define([sp_package_version_major], [0])
-m4_define([sp_package_version_minor], [1])
-m4_define([sp_package_version], [sp_package_version_major.sp_package_version_minor])
+m4_define([sp_package_version_minor], [2])
+m4_define([sp_package_version_micro], [0])
+m4_define([sp_package_version], [sp_package_version_major.sp_package_version_minor.sp_package_version_micro])
 
 AC_INIT([libserialport], [sp_package_version], [martin-libserialport@earth.li],
        [libserialport], [http://sigrok.org/wiki/Libserialport])
@@ -34,16 +35,12 @@ AC_CONFIG_AUX_DIR([autostuff])
 AC_CANONICAL_TARGET
 
 # We require at least automake 1.11 (needed for 'silent rules').
-AM_INIT_AUTOMAKE([1.11 -Wall -Werror])
+AM_INIT_AUTOMAKE([1.11 -Wall -Werror check-news])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 
-AH_TOP([#ifndef SP_CONFIG_H
-#define SP_CONFIG_H    /* To stop multiple inclusions. */])
-AH_BOTTOM([#endif /* SP_CONFIG_H */])
-
-# Enable more compiler warnings via -Wall and -Wextra.
-CFLAGS="$CFLAGS -Wall -Wextra"
+# Enable more compiler warnings.
+CFLAGS="$CFLAGS -std=c99 -Wall -Wextra -pedantic"
 
 # Checks for programs.
 AC_PROG_CC
@@ -51,9 +48,6 @@ AC_PROG_CPP
 AC_PROG_INSTALL
 AC_PROG_LN_S
 
-# Required for per-target flags or subdir-objects with C sources.
-AM_PROG_CC_C_O
-
 # Initialize libtool.
 LT_INIT
 
@@ -82,44 +76,82 @@ AC_SUBST(SP_LIB_LDFLAGS)
 # It is then used to construct the "Requires.private:" field in the
 # libserialport.pc file.
 SP_PKGLIBS=""
+SP_LIBS=""
 
 case $target_os in
 *linux*)
-       # On Linux libudev is currently a hard requirement.
-       PKG_CHECK_MODULES([libudev], [libudev >= 0],
-               [CFLAGS="$CFLAGS $libudev_CFLAGS"; LIBS="$LIBS $libudev_LIBS";
-               SP_PKGLIBS="$SP_PKGLIBS libudev"])
+       AM_CONDITIONAL([LINUX], true)
+       AM_CONDITIONAL([WIN32], false)
+       AM_CONDITIONAL([MACOSX], false)
        ;;
 *darwin*)
+       AM_CONDITIONAL([LINUX], false)
+       AM_CONDITIONAL([WIN32], false)
+       AM_CONDITIONAL([MACOSX], true)
        LDFLAGS="$LDFLAGS -Wl,-framework -Wl,IOKit -Wl,-framework -Wl,CoreFoundation"
        AC_CHECK_HEADER(IOKit/IOKitLib.h, [], [AC_MSG_ERROR([IOKit/IOKitLib.h not found])])
        ;;
+mingw* | cygwin*)
+       AM_CONDITIONAL([LINUX], false)
+       AM_CONDITIONAL([WIN32], true)
+       AM_CONDITIONAL([MACOSX], false)
+       SP_LIBS="-lsetupapi -luuid"
+       ;;
+*)
+       AM_CONDITIONAL([LINUX], false)
+       AM_CONDITIONAL([WIN32], false)
+       AM_CONDITIONAL([MACOSX], false)
+       AC_DEFINE(NO_ENUMERATION)
+       AC_DEFINE(NO_PORT_METADATA)
 esac
 
 AC_SUBST(SP_PKGLIBS)
+AC_SUBST(SP_LIBS)
 
-# Checks for header files.
-# These are already checked: inttypes.h dlfcn.h memory.h stdint.h stdlib.h
-# string.h strings.h sys/types.h sys/stat.h unistd.h
-AC_CHECK_HEADERS([errno.h fcntl.h stddef.h sys/ioctl.h termios.h])
-
-# Checks for typedefs, structures, and compiler characteristics.
-AC_C_INLINE
+# Define size_t if not defined as standard.
 AC_TYPE_SIZE_T
-AC_TYPE_SSIZE_T
 
-# Checks for library functions.
-AC_CHECK_FUNCS([strerror])
+# Check for specific termios structures.
+AC_CHECK_TYPE([struct termios2], [AC_DEFINE(HAVE_TERMIOS2, 1)], [], [[#include <linux/termios.h>]])
+AC_CHECK_TYPE([struct termiox], [AC_DEFINE(HAVE_TERMIOX, 1)], [], [[#include <linux/termios.h>]])
+AC_CHECK_MEMBERS([struct termios.c_ispeed, struct termios.c_ospeed],
+       [AC_DEFINE(HAVE_TERMIOS_SPEED, 1)], [], [[#include <linux/termios.h>]])
+AC_CHECK_MEMBERS([struct termios2.c_ispeed, struct termios2.c_ospeed],
+       [AC_DEFINE(HAVE_TERMIOS2_SPEED, 1)], [], [[#include <linux/termios.h>]])
+
+# Check for readlinkat.
+AC_CHECK_FUNC([readlinkat], [AC_DEFINE(HAVE_READLINKAT, 1)], [])
+
+# Check for serial_struct.
+AC_CHECK_TYPE([struct serial_struct], [AC_DEFINE(HAVE_SERIAL_STRUCT, 1)],
+        [], [[#include <linux/serial.h>]])
+
+saved="$CFLAGS"; CFLAGS="$CFLAGS -Werror"
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+               __attribute__((visibility("hidden"))) void foo(void) { }
+       ]])],
+       [AC_DEFINE(SP_API , __attribute__((visibility("default"))))]
+       [AC_DEFINE(SP_PRIV, __attribute__((visibility("hidden"))))],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+               __declspec(dllexport) void foo(void) { }
+       ]])],
+       [AC_DEFINE(SP_API , __declspec(dllexport))]
+       [AC_DEFINE(SP_PRIV,)],
+       [AC_DEFINE(SP_API,)]
+       [AC_DEFINE(SP_PRIV,)]))
+CFLAGS="$saved"
 
 AC_SUBST(MAKEFLAGS, '--no-print-directory')
 AC_SUBST(AM_LIBTOOLFLAGS, '--silent')
 
 SP_PACKAGE_VERSION_MAJOR=sp_package_version_major
 SP_PACKAGE_VERSION_MINOR=sp_package_version_minor
+SP_PACKAGE_VERSION_MICRO=sp_package_version_micro
 SP_PACKAGE_VERSION=sp_package_version
 
 AC_SUBST(SP_PACKAGE_VERSION_MAJOR)
 AC_SUBST(SP_PACKAGE_VERSION_MINOR)
+AC_SUBST(SP_PACKAGE_VERSION_MICRO)
 AC_SUBST(SP_PACKAGE_VERSION)
 
 AC_CONFIG_FILES([Makefile libserialport.h libserialport.pc])
@@ -129,7 +161,7 @@ AC_OUTPUT
 echo
 echo "libserialport configuration summary:"
 echo
-echo "  - Package version (major.minor):          $SP_PACKAGE_VERSION"
+echo "  - Package version (major.minor.micro):    $SP_PACKAGE_VERSION"
 echo "  - Library version (current:revision:age): $SP_LIB_VERSION"
 echo "  - Prefix: $prefix"
 echo "  - Building on: $build"