#define SR_CONFIG_H /* To stop multiple inclusions. */])
AH_BOTTOM([#endif /* SR_CONFIG_H */])
-# Enable more compiler warnings via -Wall and -Wextra. Add -fvisibility=hidden
-# and enforce use of SR_API to explicitly mark all public API functions.
-CFLAGS="$CFLAGS -std=c11"
-CFLAGS="$CFLAGS -Wall -Wextra -Wmissing-prototypes"
-CFLAGS="$CFLAGS -fvisibility=hidden"
-CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L"
-
# Checks for programs.
AC_PROG_CC
AC_PROG_CPP
# We require at least 0.22, as "Requires.private" behaviour changed there.
PKG_PROG_PKG_CONFIG([0.22])
-# This variable collects the pkg-config module names of all dependencies.
+# Keep track of all checked modules so we can list them at the end.
+SR_PKG_CHECK_SUMMARY([sr_pkglibs_summary])
+
+# Collect the pkg-config module names of all dependencies in SR_PKGLIBS.
# These are used to derive the compiler flags and for the "Requires.private"
# field in the generated libsigrok.pc file.
-SR_PKGLIBS=
+SR_VAR_OPT_PKG([SR_PKGLIBS], [sr_deps_avail])
SR_PKGLIBS_CHECK=
SR_PKGLIBS_CXX=
SR_PKGLIBS_PYTHON=
-# Keep track of all checked modules so we can list them at the end.
-sr_pkglibs_summary=
-sr_nl='
-'
-## SR_PKG_CHECK(tag, [collect-var], module...)
-m4_define([SR_PKG_CHECK], [
- sr_mod_leader=`printf '%.32s' "$3................................"`
- PKG_CHECK_EXISTS([$3], [
- sr_have_$1=yes
- m4_ifval([$2], [$2="[$]$2[$]{$2:+ }$3"])
- sr_$1_version=`$PKG_CONFIG --modversion "$3" 2>&AS_MESSAGE_LOG_FD`
- AS_VAR_APPEND([sr_pkglibs_summary], [" - $sr_mod_leader $sr_$1_version$sr_nl"])
- ], [
- AS_VAR_APPEND([sr_pkglibs_summary], [" - $sr_mod_leader no$sr_nl"])
- m4_ifval([$4],
- [SR_PKG_CHECK([$1], [$2], m4_shift3($@))],
- [sr_have_$1=no sr_$1_version=])
- ])
-])
-
-# List of detected features.
-sr_deps_avail=
-
-## SR_ARG_OPT_PKG(opt-name, [cpp-name], [cond-name], module...)
-m4_define([SR_ARG_OPT_PKG], [
- AC_ARG_WITH([$1], [AS_HELP_STRING([--without-$1],
- [disable $1 support [default=detect]])])
- AS_IF([test "x$with_$1" = xno], [sr_have_$1=no],
- [test "x$sr_have_$1" != xyes],
- [SR_PKG_CHECK([$1], [SR_PKGLIBS], m4_shift3($@))])
- AS_IF([test "x$with_$1$sr_have_$1" = xyesno],
- [AC_MSG_ERROR([$1 support requested, but it was not found.])])
- AS_IF([test "x$sr_have_$1" = xyes],
- [sr_deps_avail="$sr_deps_avail $1"[]m4_ifval([$2], [
- AC_DEFINE([HAVE_$2], [1], [Whether $1 is available.])
- AC_DEFINE_UNQUOTED([CONF_$2_VERSION], ["$sr_$1_version"], [Build-time version of $1.])
- ])])
- m4_ifval([$3], [AM_CONDITIONAL([$3], [test "x$sr_have_$1" = xyes])])
-])
-
SR_ARG_OPT_PKG([libserialport], [LIBSERIALPORT], [NEED_SERIAL],
[libserialport >= 0.1.1])
AC_LANG([C])
+# Enable the C11 standard if possible, and enforce the use
+# of SR_API to explicitly mark all public API functions.
+SR_EXTRA_CFLAGS=
+SR_CHECK_COMPILE_FLAGS([SR_EXTRA_CFLAGS], [C11], [-std=gnu11 -std=c11])
+SR_CHECK_COMPILE_FLAGS([SR_EXTRA_CFLAGS], [visibility], [-fvisibility=hidden])
+
+SR_ARG_ENABLE_WARNINGS([SR_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototypes])
+
# Check host characteristics.
AC_C_BIGENDIAN
-AC_CHECK_HEADERS([sys/mman.h], [sr_deps_avail="$sr_deps_avail sys_mman_h"])
-AC_CHECK_HEADERS([sys/ioctl.h], [sr_deps_avail="$sr_deps_avail sys_ioctl_h"])
-AC_CHECK_HEADERS([sys/timerfd.h], [sr_deps_avail="$sr_deps_avail sys_timerfd_h"])
+AC_CHECK_HEADERS([sys/mman.h], [SR_APPEND([sr_deps_avail], [sys_mman_h])])
+AC_CHECK_HEADERS([sys/ioctl.h], [SR_APPEND([sr_deps_avail], [sys_ioctl_h])])
+AC_CHECK_HEADERS([sys/timerfd.h], [SR_APPEND([sr_deps_avail], [sys_timerfd_h])])
# RPC is only needed for VXI support.
AC_CACHE_CHECK([for RPC support], [sr_cv_have_rpc],
########################
# Keep track of all drivers so we can list them at the end.
-sr_driver_summary=
+SR_VAR_SUMMARY([sr_driver_summary])
# Check whether the sr_deps_avail list contains all of the arguments.
# Unavailable dependencies are collected in sr_deps_missing.
AS_IF([test -n "$sr_deps_missing"],
[$3=no sr_hw_info="no (missing:$sr_deps_missing)"])
])], [sr_hw_info='no (disabled)'])
- sr_hw_leader=`printf '%.32s' "$2................................"`
- AS_VAR_APPEND([sr_driver_summary], [" - $sr_hw_leader $sr_hw_info$sr_nl"])
+ sr_driver_summary_append "$2" "$sr_hw_info"
AM_CONDITIONAL([$3], [test "x[$]$3" = xyes])
AM_COND_IF([$3], [AC_DEFINE([HAVE_$3], [1], [Whether to support $1 device.])])
###############################
AC_LANG([C++])
+SR_ARG_ENABLE_WARNINGS([SR_WXXFLAGS], [-Wall], [-Wall -Wextra])
AC_ARG_ENABLE([bindings],
[AS_HELP_STRING([--enable-bindings], [build language bindings [default=yes]])],
- Prefix.......................... $prefix
- Building on..................... $build
- Building for.................... $host
+ - Additional C compiler flags..... $SR_EXTRA_CFLAGS
+ - C compiler warnings............. $SR_WFLAGS
+ - C++ compiler warnings........... $SR_WXXFLAGS
Detected libraries (required):
- glib-2.0 >= 2.32.0.............. $sr_glib_version
Detected libraries (optional):
$sr_pkglibs_summary
-
Enabled hardware drivers:
$sr_driver_summary
-
Enabled SCPI backends:
- TCP............................. yes
- RPC............................. $sr_cv_have_rpc
projects / libsigrok.git / blobdiff