/
gp-check-library.m4
456 lines (454 loc) · 16 KB
/
gp-check-library.m4
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dnl @synopsis GP_CHECK_LIBRARY([VARNAMEPART],[libname],[VERSION-REQUIREMENT],
dnl [headername],[functionname],
dnl [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
dnl [OPTIONAL-REQUIRED-ETC],[WHERE-TO-GET-IT])
dnl
dnl Checks for the presence of a certain library.
dnl
dnl Parameters:
dnl
dnl VARNAMEPART partial variable name for variable definitions
dnl libname name of library
dnl VERSION-REQUIREMENT check for the version using pkg-config.
dnl default: []
dnl headername name of header file
dnl default: []
dnl functionname name of function name in library
dnl default: []
dnl ACTION-IF-FOUND shell action to execute if found
dnl default: []
dnl ACTION-IF-NOT-FOUND shell action to execute if not found
dnl default: []
dnl OPTIONAL-REQUIRED-ETC one of "mandatory", "default-on", "default-off"
dnl "disable-explicitly"
dnl default: [mandatory]
dnl WHERE-TO-GET-IT place where to find the library, e.g. a URL
dnl default: []
dnl
dnl What the ACTION-IFs can do:
dnl
dnl * change the variable have_[$1] to "yes" or "no" and thus change
dnl the outcome of the test
dnl * execute additional checks to define more specific variables, e.g.
dnl for different API versions
dnl
dnl What the OPTIONAL-REQUIRED-ETC options mean:
dnl
dnl mandatory Absolute requirement, cannot be disabled.
dnl default-on If found, it is used. If not found, it is not used.
dnl default-off In case of --with-libfoo, detect it. Without
dnl --with-libfoo, do not look for and use it.
dnl disable-explicitly Required by default, but can be disabled by
dnl explicitly giving --without-libfoo.
dnl
dnl These results have happened after calling GP_CHECK_LIBRARY:
dnl
dnl AM_CONDITIONAL([HAVE_VARPREFIX],[ if found ])
dnl AM_SUBST([have_VARPREFIX], [ "yes" if found, "no" if not found ])
dnl AM_SUBST([VARPREFIX_CFLAGS],[ -I, -D and stuff ])
dnl AM_SUBST([VARPREFIX_LIBS], [ /path/to/libname.la -L/path -lfoo ])
dnl
dnl Parameters to ./configure which influence the GP_CHECK_LIBRARY results:
dnl
dnl * VARNAMEPART_LIBS=/foobar/arm-palmos/lib/libname.la
dnl VARNAMEPART_CFLAGS=-I/foobar/include
dnl * --without-libfoo
dnl * --with-libfoo=/usr/local
dnl * --with-libfoo-include-dir=/foobar/include
dnl * --with-libfoo-lib=/foobar/arm-palmos/lib
dnl * --with-libfoo=autodetect
dnl
dnl Examples:
dnl GP_CHECK_LIBRARY([LIBEXIF], [libexif])dnl
dnl GP_CHECK_LIBRARY([LIBEXIF], [libexif-gtk], [>= 0.3.3])dnl
dnl note the space! ^
dnl
dnl Possible enhancements:
dnl
dnl * Derive VAR_PREFIX directly from libname
dnl This will change the calling conventions, so be aware of that.
dnl * Give names of a header file and function name and to a test
dnl compilation.
dnl
AC_DEFUN([_GP_CHECK_LIBRARY_SOEXT],[dnl
AC_MSG_CHECKING([for dynamic library extension])
soext=""
case "$host" in
*linux*) soext=".so" ;;
*sunos*) soext=".so" ;;
*solaris*) soext=".so" ;;
*bsd*) soext=".so" ;;
*darwin*) soext=".dylib" ;;
*w32*) soext=".dll" ;;
esac
case "$host_os" in
gnu*) soext=".so" ;;
esac
if test "x$soext" = "x"; then
soext=".so"
AC_MSG_RESULT([${soext}])
AC_MSG_WARN([
Host system "${host}" not recognized, defaulting to "${soext}".
])
else
AC_MSG_RESULT([${soext}])
fi
])dnl
dnl
AC_DEFUN([_GP_CHECK_LIBRARY],[
# ----------------------------------------------------------------------
# [GP_CHECK_LIBRARY]([$1],[$2],[$3],
# [$4],[$5],
# [...],[...],[$8])
m4_ifval([$9],[dnl
# $9
])dnl
# ----------------------------------------------------------------------
dnl
AC_REQUIRE([GP_CONFIG_MSG])dnl
AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_REQUIRE([_GP_CHECK_LIBRARY_SOEXT])dnl
# Use _CFLAGS and _LIBS given to configure.
# This makes it possible to set these vars in a configure script
# and AC_CONFIG_SUBDIRS this configure.
AC_ARG_VAR([$1][_CFLAGS], [CFLAGS for compiling with ][$2])dnl
AC_ARG_VAR([$1][_LIBS], [LIBS to add for linking against ][$2])dnl
dnl
AC_MSG_CHECKING([for ][$2][ to use])
m4_ifval([$3],[REQUIREMENTS_FOR_][$1][="][$2][ $3]["],
[REQUIREMENTS_FOR_][$1][="][$2]["])
userdef_[$1]=no
have_[$1]=no
if test "x${[$1][_LIBS]}" = "x" && test "x${[$1][_CFLAGS]}" = "x"; then
# define --with/--without argument
m4_if([$8], [default-off],
[m4_pushdef([gp_lib_arg],[--without-][$2])dnl
try_[$1]=no
],
[m4_pushdef([gp_lib_arg],[--with-][$2])dnl
try_[$1]=auto
])dnl
AC_ARG_WITH([$2],[AS_HELP_STRING([gp_lib_arg][=PREFIX],[where to find ][$2][, "no" or "auto"])],[try_][$1][="$withval"])
if test "x${[try_][$1]}" = "xno"; then
[REQUIREMENTS_FOR_][$1][=]
fi
if test "x${[try_][$1]}" = "xauto"; then [try_][$1]=autodetect; fi
AC_MSG_RESULT([${try_][$1][}])
m4_popdef([gp_lib_arg])dnl
if test "x${[try_][$1]}" = "xautodetect"; then
# OK, we have to autodetect.
# We start autodetection with the cleanest known method: pkg-config
if test "x${[have_][$1]}" = "xno"; then
# we need that line break after the PKG_CHECK_MODULES
m4_ifval([$3],
[PKG_CHECK_MODULES([$1],[$2][ $3],[have_][$1][=yes],[:])],
[PKG_CHECK_MODULES([$1],[$2], [have_][$1][=yes],[:])]
)
fi
# If pkg-config didn't find anything, try the libfoo-config program
# certain known libraries ship with.
if test "x${[have_][$1]}" = "xno"; then
AC_MSG_CHECKING([$2][ config program])
m4_pushdef([gp_lib_config],[m4_if([$2],[libusb],[libusb-config],
[$2],[libgphoto2],[gphoto2-config],
[$2],[libgphoto2_port],[gphoto2-port-config],
[$2],[gdlib],[gdlib-config],
[$2],[libxml-2.0],[xml2-config],
[none])])dnl
AC_MSG_RESULT([gp_lib_config])
AC_PATH_PROG([$1][_CONFIG_PROG],[gp_lib_config])
if test -n "${[$1][_CONFIG_PROG]}" &&
test "${[$1][_CONFIG_PROG]}" != "none"; then
m4_ifval([$3],[
AC_MSG_CHECKING([for ][$2][ version according to ][gp_lib_config])
m4_pushdef([gp_lib_compop],[regexp([$3], [\(>=\|>\|<\|<=\|=\)[ \t]*.*], [\1])])dnl comparison operator
m4_if( gp_lib_compop,[>=],[_][$1][_COMPN="-lt"],
gp_lib_compop,[>], [_][$1][_COMPN="-le"],
gp_lib_compop,[<], [_][$1][_COMPN="-ge"],
gp_lib_compop,[<=],[_][$1][_COMPN="-gt"],
gp_lib_compop,[=], [_][$1][_COMPN="-ne"],
[m4_errprint(__file__:__line__:[ Error:
Illegal version comparison operator: `gp_lib_compop'
It must be one of ">=", ">", "<", "<=", "=".
])m4_exit(1)])
m4_popdef([gp_lib_compop])dnl
# split requested version number using m4 regexps
_[$1]_REQ_1="regexp([$3], [\(>=\|>\|<\|<=\|=\)[ \t]*\([0-9]+\).*], [\2])"
_[$1]_REQ_2="regexp([$3], [\(>=\|>\|<\|<=\|=\)[ \t]*\([0-9]+\)\.\([0-9]+\).*], [\3])"
_[$1]_REQ_3="regexp([$3], [\(>=\|>\|<\|<=\|=\)[ \t]*\([0-9]+\)\.\([0-9]+\)\.\([0-9]+\).*], [\4])"
_[$1]_REQ_4="regexp([$3], [\(>=\|>\|<\|<=\|=\)[ \t]*\([0-9]+\)\.\([0-9]+\)\.\([0-9]+\)\(.*\)], [\5])"
# split installed version number via shell and sed
_[$1]_VERSION="$("${[$1][_CONFIG_PROG]}" --version | sed 's/^.* //')"
_[$1]_VER_1="$(echo "${_[$1]_VERSION}" | sed 's/\([[0-9]]*\).*/\1/g')"
_[$1]_VER_2="$(echo "${_[$1]_VERSION}" | sed 's/\([[0-9]]*\)\.\([[0-9]]*\).*/\2/g')"
_[$1]_VER_3="$(echo "${_[$1]_VERSION}" | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\3/g')"
_[$1]_VER_4="$(echo "${_[$1]_VERSION}" | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)\(.*\)/\4/g')"
AC_MSG_RESULT([${_][$1][_VERSION}])
_tmp=false
if test "${_[$1]_VER_1}" "${_[$1]_COMPN}" "${_[$1]_REQ_1}"; then _tmp=true;
elif test "${_[$1]_VER_2}" "${_[$1]_COMPN}" "${_[$1]_REQ_2}"; then _tmp=true;
elif test "${_[$1]_VER_3}" "${_[$1]_COMPN}" "${_[$1]_REQ_3}"; then _tmp=true;
elif test "x${_[$1]_VER_4}" = "x" && test "x${_[$1]_REQ_4}" != "x"; then _tmp=true;
elif test "${_[$1]_VER_4}" "${_[$1]_COMPN}" "${_[$1]_REQ_4}"; then _tmp=true;
fi
AC_MSG_CHECKING([if ][$2][ version is matching requirement ][$3])
if "${_tmp}"; then
AC_MSG_RESULT([no])
AC_MSG_ERROR([Version requirement ][$2][ ][$3][ not met. Found: ${_][$1][_VERSION}])
else
AC_MSG_RESULT([yes])
fi
])dnl if version requirement given
AC_MSG_CHECKING([for ][$2][ parameters from ][gp_lib_config])
[$1]_LIBS="$(${[$1][_CONFIG_PROG]} --libs || echo "*error*")"
[$1]_CFLAGS="$(${[$1][_CONFIG_PROG]} --cflags || echo "*error*")"
if test "x${[$1]_LIBS}" = "*error*" ||
test "x${[$1]_CFLAGS}" = "*error*"; then
AC_MSG_RESULT([error])
else
have_[$1]=yes
AC_MSG_RESULT([ok])
fi
fi
m4_popdef([gp_lib_config])dnl
fi
m4_ifval([$3],[# Version requirement given, so we do not rely on probing.],[
# Neither pkg-config, nor the libfoo-config program have found anything.
# So let's just probe the system.
AC_MSG_WARN([The `$2' library could not be found using pkg-config or its known config program.
No version checks will be performed if it is found using any other method.])
if test "x${[have_][$1]}" = "xno"; then
ifs="$IFS"
IFS=":" # FIXME: for W32 and OS/2 we may need ";" here
for _libdir_ in \
${LD_LIBRARY_PATH} \
"${libdir}" \
"${prefix}/lib64" "${prefix}/lib" \
/usr/lib64 /usr/lib \
/usr/local/lib64 /usr/local/lib \
/opt/lib64 /opt/lib
do
IFS="$ifs"
for _soext_ in .la ${soext} .a; do
if test -f "${_libdir_}/[$2]${_soext_}"
then
if test "x${_soext_}" = "x.la" ||
test "x${_soext_}" = "x.a"; then
[$1]_LIBS="${_libdir_}/[$2]${_soext_}"
else
[$1]_LIBS="-L${_libdir_} -l$(echo "$2" | sed 's/^lib//')"
fi
break
fi
done
if test "x${[$1][_LIBS]}" != "x"; then
break
fi
done
IFS="$ifs"
if test "x${[$1][_LIBS]}" != "x"; then
have_[$1]=yes
fi
fi
])
elif test "x${[try_][$1]}" = "xno"; then
:
else
# We've been given a prefix to look in for library $2.
# We start looking for $2.la files first.
AC_MSG_CHECKING([for ][$2][.la file in ${[try_][$1]}])
if test -f "${[try_][$1]}/lib/[$2].la"; then
[$1][_LIBS]="${[try_][$1]}/lib/[$2].la"
[$1][_CFLAGS]="-I${[try_][$1]}/include"
AC_MSG_RESULT([libtool file $][$1][_LIBS (good)])
have_[$1]=yes
elif test -f "${[try_][$1]}/lib64/[$2].la"; then # HACK
[$1][_LIBS]="${[try_][$1]}/lib64/[$2].la"
[$1][_CFLAGS]="-I${[try_][$1]}/include"
AC_MSG_RESULT([libtool file $][$1][_LIBS (good)])
have_[$1]=yes
else
AC_MSG_RESULT([wild guess that something is in $try_][$1])
[$1][_LIBS]="-L${[try_][$1]}/lib -l$(echo "$2" | sed 's/^lib//')"
[$1][_CFLAGS]="-I${[try_][$1]}/include"
have_[$1]=yes
AC_MSG_WARN([
* Warning:
* libtool file $2.la could not be found.
* We may be linking against the WRONG library.
])
fi
fi
elif test "x${[$1][_LIBS]}" != "x" && test "x${[$1][_CFLAGS]}" != "x"; then
AC_MSG_RESULT([user-defined])
userdef_[$1]=yes
have_[$1]=yes
else
AC_MSG_RESULT([broken call])
AC_MSG_ERROR([
* Fatal:
* When calling configure for ${PACKAGE_TARNAME}
* ${PACKAGE_NAME}
* either set both [$1][_LIBS] *and* [$1][_CFLAGS]
* or neither.
])
fi
AC_SUBST([REQUIREMENTS_FOR_][$1])
dnl
dnl ACTION-IF-FOUND
dnl
m4_ifval([$6],[dnl
if test "x${[have_][$1]}" = "xyes"; then
# ACTION-IF-FOUND
$6
fi
])dnl
dnl
dnl ACTION-IF-NOT-FOUND
dnl
m4_ifval([$7],[dnl
if test "x${[have_][$1]}" = "xno"; then
# ACTION-IF-NOT-FOUND
$7
fi
])dnl
dnl
dnl Run our own test compilation
dnl
m4_ifval([$4],[dnl
if test "x${[have_][$1]}" = "xyes"; then
dnl AC_MSG_CHECKING([whether ][$2][ test compile succeeds])
dnl AC_MSG_RESULT([${[have_][$1]}])
CPPFLAGS_save="$CPPFLAGS"
CPPFLAGS="${[$1]_CFLAGS}"
AC_CHECK_HEADER([$4],[have_][$1][=yes],[have_][$1][=no])
CPPFLAGS="$CPPFLAGS_save"
fi
])dnl
dnl
dnl Run our own test link
dnl Does not work for libraries which be built after configure time,
dnl so we deactivate it for them (userdef_).
dnl
m4_ifval([$5],[dnl
if test "x${[userdef_][$1]}" = "xno" && test "x${[have_][$1]}" = "xyes"; then
AC_MSG_CHECKING([for function ][$5][ in ][$2])
LIBS_save="$LIBS"
LIBS="${[$1]_LIBS}"
AC_TRY_LINK_FUNC([$5],[],[have_][$1][=no])
LIBS="$LIBS_save"
AC_MSG_RESULT([${[have_][$1]}])
fi
])dnl
dnl
dnl Abort configure script if mandatory, but not found
dnl
m4_if([$8],[mandatory],[
if test "x${[have_][$1]}" = "xno"; then
AC_MSG_ERROR([
PKG_CONFIG_PATH=${PKG_CONFIG_PATH}
[$1][_LIBS]=${[$1][_LIBS]}
[$1][_CFLAGS]=${[$1][_CFLAGS]}
* Fatal: ${PACKAGE_NAME} requires $2 $3 to build.
*
* Possible solutions:
* - set PKG_CONFIG_PATH to adequate value
* - call configure with [$1][_LIBS]=.. and [$1][_CFLAGS]=..
* - call configure with one of the --with-$2 parameters
][m4_ifval([$9],[dnl
* - get $2 and install it:
* $9],[dnl
* - get $2 and install it])])
fi
])dnl
dnl
dnl Abort configure script if not found and not explicitly disabled
dnl
m4_if([$8],[disable-explicitly],[
if test "x${[try_][$1]}" != "xno" && test "x${[have_][$1]}" = "xno"; then
AC_MSG_ERROR([
PKG_CONFIG_PATH=${PKG_CONFIG_PATH}
[$1][_LIBS]=${[$1][_LIBS]}
[$1][_CFLAGS]=${[$1][_CFLAGS]}
* Fatal: ${PACKAGE_NAME} by default requires $2 $3 to build.
* You must explicitly disable $2 to build ${PACKAGE_TARNAME} without it.
*
* Possible solutions:
* - call configure with --with-$2=no or --without-$2
* - set PKG_CONFIG_PATH to adequate value
* - call configure with [$1][_LIBS]=.. and [$1][_CFLAGS]=..
* - call configure with one of the --with-$2 parameters
][m4_ifval([$9],[dnl
* - get $2 and install it:
* $9],[dnl
* - get $2 and install it
])][m4_if([$2],[libusb],[dnl
* - if you have libusb >= 1.0 installed, you must also install
* either the libusb0 compat library or a libusb 0.x version
])])
fi
])dnl
AM_CONDITIONAL([HAVE_][$1], [test "x$have_[$1]" = "xyes"])
if test "x$have_[$1]" = "xyes"; then
AC_DEFINE([HAVE_][$1], 1, [whether we compile with ][$2][ support])
GP_CONFIG_MSG([$2],[yes])dnl
AC_MSG_CHECKING([$2][ library flags])
AC_MSG_RESULT(["${[$1][_LIBS]}"])
AC_MSG_CHECKING([$2][ cpp flags])
AC_MSG_RESULT(["${[$1][_CFLAGS]}"])
else
[REQUIREMENTS_FOR_][$1][=]
GP_CONFIG_MSG([$2],[no])dnl
fi
dnl AC_SUBST is done implicitly by AC_ARG_VAR above.
dnl AC_SUBST([$1][_LIBS])
dnl AC_SUBST([$1][_CFLAGS])
])dnl
dnl
dnl ####################################################################
dnl
AC_DEFUN([_GP_CHECK_LIBRARY_SYNTAX_ERROR],[dnl
m4_errprint(__file__:__line__:[ Error:
*** Calling $0 macro with old syntax
*** Aborting.
])dnl
m4_exit(1)dnl
])dnl
dnl
dnl ####################################################################
dnl
AC_DEFUN([GP_CHECK_LIBRARY],[dnl
m4_if([$4], [mandatory], [_GP_CHECK_LIBRARY_SYNTAX_ERROR($0)],
[$4], [default-enabled], [_GP_CHECK_LIBRARY_SYNTAX_ERROR($0)],
[$4], [default-disabled], [_GP_CHECK_LIBRARY_SYNTAX_ERROR($0)])dnl
m4_if([$8], [], [dnl
_GP_CHECK_LIBRARY([$1],[$2],[$3],[$4],[$5],[$6],[$7],[mandatory],[$9])],
[$8], [default-on], [dnl
_GP_CHECK_LIBRARY([$1],[$2],[$3],[$4],[$5],[$6],[$7],[$8],[$9])],
[$8], [disable-explicitly], [dnl
_GP_CHECK_LIBRARY([$1],[$2],[$3],[$4],[$5],[$6],[$7],[$8],[$9])],
[$8], [default-off], [dnl
_GP_CHECK_LIBRARY([$1],[$2],[$3],[$4],[$5],[$6],[$7],[$8],[$9])],
[$8], [mandatory], [dnl
_GP_CHECK_LIBRARY([$1],[$2],[$3],[$4],[$5],[$6],[$7],[$8],[$9])],
[m4_errprint(__file__:__line__:[ Error:
Illegal argument 6 to $0: `$6'
It must be one of "default-on", "default-off", "mandatory".
])m4_exit(1)])dnl
])dnl
dnl
m4_pattern_disallow([GP_CHECK_LIBRARY])
m4_pattern_disallow([_GP_CHECK_LIBRARY])
m4_pattern_disallow([_GP_CHECK_LIBRARY_SYNTAX_ERROR])
m4_pattern_disallow([_GP_CHECK_LIBRARY_SOEXT])
dnl
dnl ####################################################################
dnl
dnl Please do not remove this:
dnl filetype: 6e60b4f0-acb2-4cd5-8258-42014f92bd2c
dnl I use this to find all the different instances of this file which
dnl are supposed to be synchronized.
dnl
dnl Local Variables:
dnl mode: autoconf
dnl End: