diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 350 |
1 files changed, 350 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..bfabbaa --- /dev/null +++ b/configure.ac @@ -0,0 +1,350 @@ +AC_PREREQ(2.64) +AC_INIT([kmod], + [31], + [linux-modules@vger.kernel.org], + [kmod], + [http://git.kernel.org/?p=utils/kernel/kmod/kmod.git]) + +AC_CONFIG_SRCDIR([libkmod/libkmod.c]) +AC_CONFIG_MACRO_DIR([m4]) +AC_CONFIG_HEADERS(config.h) +AC_CONFIG_AUX_DIR([build-aux]) + +AC_USE_SYSTEM_EXTENSIONS +AC_SYS_LARGEFILE +AC_PREFIX_DEFAULT([/usr]) +AM_MAINTAINER_MODE([enable]) +AM_INIT_AUTOMAKE([check-news foreign 1.11 silent-rules tar-pax no-dist-gzip dist-xz subdir-objects color-tests parallel-tests]) +AM_SILENT_RULES([yes]) +LT_INIT([disable-static pic-only]) + +AS_IF([test "x$enable_static" = "xyes"], [AC_MSG_ERROR([--enable-static is not supported by kmod])]) +AS_IF([test "x$enable_largefile" = "xno"], [AC_MSG_ERROR([--disable-largefile is not supported by kmod])]) + +module_compressions="" +module_signatures="legacy" + +##################################################################### +# Program checks and configurations +##################################################################### + +AC_PROG_SED +AC_PROG_MKDIR_P +AC_PROG_LN_S +PKG_PROG_PKG_CONFIG +AC_PATH_PROG([XSLTPROC], [xsltproc]) + +AC_PROG_CC_C99 + +##################################################################### +# Function and structure checks +##################################################################### + +AC_CHECK_FUNCS_ONCE(__xstat) +AC_CHECK_FUNCS_ONCE([__secure_getenv secure_getenv]) +AC_CHECK_FUNCS_ONCE([finit_module]) + +CC_CHECK_FUNC_BUILTIN([__builtin_clz]) +CC_CHECK_FUNC_BUILTIN([__builtin_types_compatible_p]) +CC_CHECK_FUNC_BUILTIN([__builtin_uaddl_overflow], [ ], [ ]) +CC_CHECK_FUNC_BUILTIN([__builtin_uaddll_overflow], [ ], [ ]) + +# dietlibc doesn't have st.st_mtim struct member +AC_CHECK_MEMBERS([struct stat.st_mtim], [], [], [#include <sys/stat.h>]) + +# musl 1.0 and bionic 4.4 don't have strndupa +AC_CHECK_DECLS_ONCE([strndupa]) + +# RHEL 5 and older do not have be32toh +AC_CHECK_DECLS_ONCE([be32toh]) + +# Check kernel headers +AC_CHECK_HEADERS_ONCE([linux/module.h]) + +AC_MSG_CHECKING([whether _Static_assert() is supported]) +AC_COMPILE_IFELSE( + [AC_LANG_SOURCE([[_Static_assert(1, "Test");]])], + [AC_DEFINE([HAVE_STATIC_ASSERT], [1], [Define if _Static_assert() is available]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + +AC_MSG_CHECKING([whether _Noreturn is supported]) +AC_COMPILE_IFELSE( + [AC_LANG_SOURCE([[#include <stdlib.h> + _Noreturn int foo(void) { exit(0); }]])], + [AC_DEFINE([HAVE_NORETURN], [1], [Define if _Noreturn is available]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + + +##################################################################### +# --with- +##################################################################### + +AC_ARG_WITH([distconfdir], AS_HELP_STRING([--with-distconfdir=DIR], [directory to search for distribution configuration files]), + [], [with_distconfdir='${prefix}/lib']) +AC_SUBST([distconfdir], [$with_distconfdir]) + +AC_ARG_WITH([rootlibdir], + AS_HELP_STRING([--with-rootlibdir=DIR], [rootfs directory to install shared libraries]), + [], [with_rootlibdir=$libdir]) +AC_SUBST([rootlibdir], [$with_rootlibdir]) + +# Ideally this would be $prefix/lib/modules but default to /lib/modules for compatibility with earlier versions +AC_ARG_WITH([module_directory], + AS_HELP_STRING([--with-module-directory=DIR], [directory in which to look for kernel modules - typically '/lib/modules' or '${prefix}/lib/modules']), + [], [with_module_directory=/lib/modules]) +AC_SUBST([module_directory], [$with_module_directory]) + +# Check all directory arguments for consistency. +for ac_var in distconfdir rootlibdir module_directory +do + eval ac_val=\$$ac_var + # Remove trailing slashes. + case $ac_val in + */ ) + ac_val=`expr "X$ac_val" : 'X\(.*@<:@^/@:>@\)' \| "X$ac_val" : 'X\(.*\)'` + eval $ac_var=\$ac_val;; + esac + # Be sure to have absolute directory names. + case $ac_val in + @<:@\\/$@:>@* | ?:@<:@\\/@:>@* ) continue;; + esac + as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val" +done + +AC_ARG_WITH([zstd], + AS_HELP_STRING([--with-zstd], [handle Zstandard-compressed modules @<:@default=disabled@:>@]), + [], [with_zstd=no]) +AS_IF([test "x$with_zstd" != "xno"], [ + PKG_CHECK_MODULES([libzstd], [libzstd >= 1.4.4], [LIBS="$LIBS $libzstd_LIBS"]) + AC_DEFINE([ENABLE_ZSTD], [1], [Enable Zstandard for modules.]) + module_compressions="zstd $module_compressions" +], [ + AC_MSG_NOTICE([Zstandard support not requested]) +]) +CC_FEATURE_APPEND([with_features], [with_zstd], [ZSTD]) + +AC_ARG_WITH([xz], + AS_HELP_STRING([--with-xz], [handle Xz-compressed modules @<:@default=disabled@:>@]), + [], [with_xz=no]) +AS_IF([test "x$with_xz" != "xno"], [ + PKG_CHECK_MODULES([liblzma], [liblzma >= 4.99], [LIBS="$LIBS $liblzma_LIBS"]) + AC_DEFINE([ENABLE_XZ], [1], [Enable Xz for modules.]) + module_compressions="xz $module_compressions" +], [ + AC_MSG_NOTICE([Xz support not requested]) +]) +CC_FEATURE_APPEND([with_features], [with_xz], [XZ]) + +AC_ARG_WITH([zlib], + AS_HELP_STRING([--with-zlib], [handle gzipped modules @<:@default=disabled@:>@]), + [], [with_zlib=no]) +AS_IF([test "x$with_zlib" != "xno"], [ + PKG_CHECK_MODULES([zlib], [zlib], [LIBS="$LIBS $zlib_LIBS"]) + AC_DEFINE([ENABLE_ZLIB], [1], [Enable zlib for modules.]) + module_compressions="gzip $module_compressions" +], [ + AC_MSG_NOTICE([zlib support not requested]) +]) +CC_FEATURE_APPEND([with_features], [with_zlib], [ZLIB]) + +AC_ARG_WITH([openssl], + AS_HELP_STRING([--with-openssl], [handle PKCS7 signatures @<:@default=disabled@:>@]), + [], [with_openssl=no]) +AS_IF([test "x$with_openssl" != "xno"], [ + PKG_CHECK_MODULES([libcrypto], [libcrypto >= 1.1.0], [LIBS="$LIBS $libcrypto_LIBS"]) + AC_DEFINE([ENABLE_OPENSSL], [1], [Enable openssl for modinfo.]) + module_signatures="PKCS7 $module_signatures" +], [ + AC_MSG_NOTICE([openssl support not requested]) +]) +CC_FEATURE_APPEND([with_features], [with_openssl], [LIBCRYPTO]) + +AC_ARG_WITH([bashcompletiondir], + AS_HELP_STRING([--with-bashcompletiondir=DIR], [Bash completions directory]), + [], + [AS_IF([$($PKG_CONFIG --exists bash-completion)], [ + with_bashcompletiondir=$($PKG_CONFIG --variable=completionsdir bash-completion) + ] , [ + with_bashcompletiondir=${datadir}/bash-completion/completions + ])]) +AC_SUBST([bashcompletiondir], [$with_bashcompletiondir]) + +##################################################################### +# --enable- +##################################################################### + +AC_ARG_ENABLE([experimental], + AS_HELP_STRING([--enable-experimental], [enable experimental tools and features. Do not enable it unless you know what you are doing. @<:@default=disabled@:>@]), + [], enable_experimental=no) +AM_CONDITIONAL([BUILD_EXPERIMENTAL], [test "x$enable_experimental" = "xyes"]) +AS_IF([test "x$enable_experimental" = "xyes"], [ + AC_DEFINE(ENABLE_EXPERIMENTAL, [1], [Experimental features.]) +]) +CC_FEATURE_APPEND([with_features], [enable_experimental], [EXPERIMENTAL]) + +AC_ARG_ENABLE([tools], + AS_HELP_STRING([--disable-tools], [disable building tools that provide same functionality as module-init-tools @<:@default=enabled@:>@]), + [], enable_tools=yes) +AM_CONDITIONAL([BUILD_TOOLS], [test "x$enable_tools" = "xyes"]) + +AC_ARG_ENABLE([manpages], + AS_HELP_STRING([--disable-manpages], [disable manpages @<:@default=enabled@:>@]), + [], enable_manpages=yes) +AM_CONDITIONAL([BUILD_MANPAGES], [test "x$enable_manpages" = "xyes"]) + +AC_ARG_ENABLE([test-modules], + AS_HELP_STRING([--disable-test-modules], [disable building test modules during make check: cached modules will be used @<:@default=enabled@:>@]), + [], enable_test_modules=yes) +AM_CONDITIONAL([BUILD_MODULES], [test "x$enable_test_modules" = "xyes"]) + +AC_ARG_ENABLE([logging], + AS_HELP_STRING([--disable-logging], [disable system logging @<:@default=enabled@:>@]), + [], enable_logging=yes) +AS_IF([test "x$enable_logging" = "xyes"], [ + AC_DEFINE(ENABLE_LOGGING, [1], [System logging.]) +]) + +AC_ARG_ENABLE([debug], + AS_HELP_STRING([--enable-debug], [enable debug messages @<:@default=disabled@:>@]), + [], [enable_debug=no]) +AS_IF([test "x$enable_debug" = "xyes"], [ + AC_DEFINE(ENABLE_DEBUG, [1], [Debug messages.]) +]) + +AC_ARG_ENABLE([coverage], + AS_HELP_STRING([--enable-coverage], [enable test coverage @<:@default=disabled@:>@]), + [], [enable_coverage=no]) +AS_IF([test "x$enable_coverage" = "xyes"], [ + AC_CHECK_PROG(have_coverage, [lcov], [yes], [no]) + AS_IF([test "x$have_coverage" = xno],[ + AC_MSG_ERROR([*** lcov support requested but the program was not found]) + ], [ + lcov_version_major="`lcov --version | cut -d ' ' -f 4 | cut -d '.' -f 1`" + lcov_version_minor="`lcov --version | cut -d ' ' -f 4 | cut -d '.' -f 2`" + AS_IF([test "$lcov_version_major" -lt 1 -o "$lcov_version_minor" -lt 10], [ + AC_MSG_ERROR([*** lcov version is too old. 1.10 required]) + ], [ + have_coverage=yes + CC_CHECK_FLAGS_APPEND([with_coverage_cflags], [CFLAGS], [\ + -fprofile-arcs \ + -ftest-coverage]) + ]) + ]) +]) +AM_CONDITIONAL([ENABLE_COVERAGE], [test "x$enable_coverage" = "xyes"]) + +m4_ifdef([GTK_DOC_CHECK], [ +GTK_DOC_CHECK([1.14],[--flavour no-tmpl-flat]) +], [ +AM_CONDITIONAL([ENABLE_GTK_DOC], false)]) + +##################################################################### +# Default CFLAGS and LDFLAGS +##################################################################### + +CC_CHECK_FLAGS_APPEND(with_cflags, [CFLAGS], [\ + -pipe \ + -DANOTHER_BRICK_IN_THE \ + -Wall \ + -W \ + -Wextra \ + -Wno-inline \ + -Wvla \ + -Wundef \ + -Wformat=2 \ + -Wlogical-op \ + -Wsign-compare \ + -Wformat-security \ + -Wmissing-include-dirs \ + -Wformat-nonliteral \ + -Wold-style-definition \ + -Wpointer-arith \ + -Winit-self \ + -Wdeclaration-after-statement \ + -Wfloat-equal \ + -Wmissing-prototypes \ + -Wstrict-prototypes \ + -Wredundant-decls \ + -Wmissing-declarations \ + -Wmissing-noreturn \ + -Wshadow \ + -Wendif-labels \ + -Wstrict-aliasing=3 \ + -Wwrite-strings \ + -Wno-long-long \ + -Wno-overlength-strings \ + -Wno-unused-parameter \ + -Wno-missing-field-initializers \ + -Wno-unused-result \ + -Wnested-externs \ + -Wchar-subscripts \ + -Wtype-limits \ + -Wuninitialized \ + -fno-common \ + -fdiagnostics-show-option \ + -fvisibility=hidden \ + -ffunction-sections \ + -fdata-sections]) +AC_SUBST([OUR_CFLAGS], "$with_cflags $with_coverage_cflags") + + +CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS], [ \ + -Wl,--as-needed \ + -Wl,--no-undefined \ + -Wl,--gc-sections]) +AC_SUBST([OUR_LDFLAGS], $with_ldflags) + +AC_DEFINE_UNQUOTED(KMOD_FEATURES, ["$with_features"], [Features in this build]) + +##################################################################### +# Generate files from *.in +##################################################################### + +AC_SUBST([module_compressions], $module_compressions) +AC_SUBST([module_signatures], $module_signatures) + +AC_CONFIG_FILES([ + Makefile + man/Makefile + libkmod/docs/Makefile + libkmod/docs/version.xml + libkmod/libkmod.pc + tools/kmod.pc +]) + + +##################################################################### + +AC_OUTPUT +AC_MSG_RESULT([ + $PACKAGE $VERSION + ======= + + module_directory: ${module_directory} + prefix: ${prefix} + sysconfdir: ${sysconfdir} + distconfdir: ${distconfdir} + libdir: ${libdir} + rootlibdir: ${rootlibdir} + includedir: ${includedir} + bindir: ${bindir} + Bash completions dir: ${with_bashcompletiondir} + + compiler: ${CC} + cflags: ${with_cflags} ${CFLAGS} + ldflags: ${with_ldflags} ${LDFLAGS} + + experimental features: ${enable_experimental} + tools: ${enable_tools} + logging: ${enable_logging} + compression: zstd=${with_zstd} xz=${with_xz} zlib=${with_zlib} + debug: ${enable_debug} + coverage: ${enable_coverage} + doc: ${enable_gtk_doc} + man: ${enable_manpages} + test-modules: ${enable_test_modules} + + features: ${with_features} +]) |