kmod/configure.ac
Torge Matthies 3821e1971e add Zstandard compression support
I changed the style of the hackargs variable in autogen.sh to multiline
because said line was becoming a bit long with the new --with-zstd arg
added.

A previous version of this patch has been running on my two Arch Linux
installations (with an accompanying mkinitcpio patch) for several months
over many kernel updates without any issues.
Any additional testing and/or patch review would of course be appreciated.

Signed-off-by: Torge Matthies <openglfreak@googlemail.com>
2020-09-10 21:55:01 -07:00

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AC_PREREQ(2.64)
AC_INIT([kmod],
[27],
[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])])
#####################################################################
# 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_PATH_PROG([MKOSI], [mkosi])
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([[_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([rootlibdir],
AS_HELP_STRING([--with-rootlibdir=DIR], [rootfs directory to install shared libraries]),
[], [with_rootlibdir=$libdir])
AC_SUBST([rootlibdir], [$with_rootlibdir])
AC_ARG_WITH([zstd],
AS_HELP_STRING([--with-zstd], [handle Zstandard-compressed modules @<:@default=disabled@:>@]),
[], [with_zstd=no])
AS_IF([test "x$with_zstd" != "xno"], [
PKG_CHECK_MODULES([libzstd], [libzstd >= 1.4.4])
AC_DEFINE([ENABLE_ZSTD], [1], [Enable Zstandard for modules.])
], [
AC_MSG_NOTICE([Zstandard support not requested])
])
CC_FEATURE_APPEND([with_features], [with_zstd], [ZSTD])
AC_ARG_WITH([xz],
AS_HELP_STRING([--with-xz], [handle Xz-compressed modules @<:@default=disabled@:>@]),
[], [with_xz=no])
AS_IF([test "x$with_xz" != "xno"], [
PKG_CHECK_MODULES([liblzma], [liblzma >= 4.99])
AC_DEFINE([ENABLE_XZ], [1], [Enable Xz for modules.])
], [
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$with_zlib" != "xno"], [
PKG_CHECK_MODULES([zlib], [zlib])
AC_DEFINE([ENABLE_ZLIB], [1], [Enable zlib for modules.])
], [
AC_MSG_NOTICE([zlib support not requested])
])
CC_FEATURE_APPEND([with_features], [with_zlib], [ZLIB])
AC_ARG_WITH([openssl],
AS_HELP_STRING([--with-openssl], [handle PKCS7 signatures @<:@default=disabled@:>@]),
[], [with_openssl=no])
AS_IF([test "x$with_openssl" != "xno"], [
PKG_CHECK_MODULES([libcrypto], [libcrypto >= 1.1.0])
AC_DEFINE([ENABLE_OPENSSL], [1], [Enable openssl for modinfo.])
], [
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$enable_debug" = "xyes"], [
AC_DEFINE(ENABLE_DEBUG, [1], [Debug messages.])
])
AC_ARG_ENABLE([python],
AS_HELP_STRING([--enable-python], [enable Python libkmod bindings @<:@default=disabled@:>@]),
[], [enable_python=no])
AS_IF([test "x$enable_python" = "xyes"], [
AM_PATH_PYTHON(,,[:])
AC_PATH_PROG([CYTHON], [cython], [:])
PKG_CHECK_MODULES([PYTHON], [python-${PYTHON_VERSION}],
[have_python=yes],
[PKG_CHECK_MODULES([PYTHON], [python],
[have_python=yes],
[have_python=no])])
AS_IF([test "x$have_python" = xno],
[AC_MSG_ERROR([*** python support requested but libraries not found])])
])
AM_CONDITIONAL([BUILD_PYTHON], [test "x$enable_python" = "xyes"])
AC_ARG_ENABLE([coverage],
AS_HELP_STRING([--enable-coverage], [enable test coverage @<:@default=disabled@:>@]),
[], [enable_coverage=no])
AS_IF([test "x$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_CONFIG_FILES([
Makefile
man/Makefile
libkmod/docs/Makefile
libkmod/docs/version.xml
])
#####################################################################
AC_OUTPUT
AC_MSG_RESULT([
$PACKAGE $VERSION
=======
prefix: ${prefix}
sysconfdir: ${sysconfdir}
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}
python bindings: ${enable_python}
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}
])