| #--------------------------------------------------------------------------- |
| # |
| # xc-lt-iface.m4 |
| # |
| # Copyright (c) 2013 - 2022, Daniel Stenberg <daniel@haxx.se> |
| # |
| # Permission to use, copy, modify, and distribute this software for any |
| # purpose with or without fee is hereby granted, provided that the above |
| # copyright notice and this permission notice appear in all copies. |
| # |
| # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| # |
| # SPDX-License-Identifier: ISC |
| # |
| #--------------------------------------------------------------------------- |
| |
| # serial 1 |
| |
| |
| dnl _XC_LIBTOOL_PREAMBLE |
| dnl ------------------------------------------------- |
| dnl Private macro. |
| dnl |
| dnl Checks some configure script options related with |
| dnl libtool and customizes its default behavior before |
| dnl libtool code is actually used in script. |
| |
| m4_define([_XC_LIBTOOL_PREAMBLE], |
| [dnl |
| # ------------------------------------ # |
| # Determine libtool default behavior # |
| # ------------------------------------ # |
| |
| # |
| # Default behavior is to enable shared and static libraries on systems |
| # where libtool knows how to build both library versions, and does not |
| # require separate configuration and build runs for each flavor. |
| # |
| |
| xc_lt_want_enable_shared='yes' |
| xc_lt_want_enable_static='yes' |
| |
| # |
| # User may have disabled shared or static libraries. |
| # |
| case "x$enable_shared" in @%:@ ( |
| xno) |
| xc_lt_want_enable_shared='no' |
| ;; |
| esac |
| case "x$enable_static" in @%:@ ( |
| xno) |
| xc_lt_want_enable_static='no' |
| ;; |
| esac |
| if test "x$xc_lt_want_enable_shared" = 'xno' && |
| test "x$xc_lt_want_enable_static" = 'xno'; then |
| AC_MSG_ERROR([can not disable shared and static libraries simultaneously]) |
| fi |
| |
| # |
| # Default behavior on systems that require independent configuration |
| # and build runs for shared and static is to enable shared libraries |
| # and disable static ones. On these systems option '--disable-shared' |
| # must be used in order to build a proper static library. |
| # |
| |
| if test "x$xc_lt_want_enable_shared" = 'xyes' && |
| test "x$xc_lt_want_enable_static" = 'xyes'; then |
| case $host_os in @%:@ ( |
| pw32* | cegcc* | os2* | aix*) |
| xc_lt_want_enable_static='no' |
| ;; |
| esac |
| fi |
| |
| # |
| # Make libtool aware of current shared and static library preferences |
| # taking in account that, depending on host characteristics, libtool |
| # may modify these option preferences later in this configure script. |
| # |
| |
| enable_shared=$xc_lt_want_enable_shared |
| enable_static=$xc_lt_want_enable_static |
| |
| # |
| # Default behavior is to build PIC objects for shared libraries and |
| # non-PIC objects for static libraries. |
| # |
| |
| xc_lt_want_with_pic='default' |
| |
| # |
| # User may have specified PIC preference. |
| # |
| |
| case "x$with_pic" in @%:@ (( |
| xno) |
| xc_lt_want_with_pic='no' |
| ;; |
| xyes) |
| xc_lt_want_with_pic='yes' |
| ;; |
| esac |
| |
| # |
| # Default behavior on some systems where building a shared library out |
| # of non-PIC compiled objects will fail with following linker error |
| # "relocation R_X86_64_32 can not be used when making a shared object" |
| # is to build PIC objects even for static libraries. This behavior may |
| # be overridden using 'configure --disable-shared --without-pic'. |
| # |
| |
| if test "x$xc_lt_want_with_pic" = 'xdefault'; then |
| case $host_cpu in @%:@ ( |
| x86_64 | amd64 | ia64) |
| case $host_os in @%:@ ( |
| linux* | freebsd* | midnightbsd*) |
| xc_lt_want_with_pic='yes' |
| ;; |
| esac |
| ;; |
| esac |
| fi |
| |
| # |
| # Make libtool aware of current PIC preference taking in account that, |
| # depending on host characteristics, libtool may modify PIC default |
| # behavior to fit host system idiosyncrasies later in this script. |
| # |
| |
| with_pic=$xc_lt_want_with_pic |
| dnl |
| m4_define([$0],[])dnl |
| ]) |
| |
| |
| dnl _XC_LIBTOOL_BODY |
| dnl ------------------------------------------------- |
| dnl Private macro. |
| dnl |
| dnl This macro performs embedding of libtool code into |
| dnl configure script, regardless of libtool version in |
| dnl use when generating configure script. |
| |
| m4_define([_XC_LIBTOOL_BODY], |
| [dnl |
| ## ----------------------- ## |
| ## Start of libtool code ## |
| ## ----------------------- ## |
| m4_ifdef([LT_INIT], |
| [dnl |
| LT_INIT([win32-dll]) |
| ],[dnl |
| AC_LIBTOOL_WIN32_DLL |
| AC_PROG_LIBTOOL |
| ])dnl |
| ## --------------------- ## |
| ## End of libtool code ## |
| ## --------------------- ## |
| dnl |
| m4_define([$0], [])[]dnl |
| ]) |
| |
| |
| dnl _XC_CHECK_LT_BUILD_LIBRARIES |
| dnl ------------------------------------------------- |
| dnl Private macro. |
| dnl |
| dnl Checks whether libtool shared and static libraries |
| dnl are finally built depending on user input, default |
| dnl behavior and knowledge that libtool has about host |
| dnl characteristics. |
| dnl Results stored in following shell variables: |
| dnl xc_lt_build_shared |
| dnl xc_lt_build_static |
| |
| m4_define([_XC_CHECK_LT_BUILD_LIBRARIES], |
| [dnl |
| # |
| # Verify if finally libtool shared libraries will be built |
| # |
| |
| case "x$enable_shared" in @%:@ (( |
| xyes | xno) |
| xc_lt_build_shared=$enable_shared |
| ;; |
| *) |
| AC_MSG_ERROR([unexpected libtool enable_shared value: $enable_shared]) |
| ;; |
| esac |
| |
| # |
| # Verify if finally libtool static libraries will be built |
| # |
| |
| case "x$enable_static" in @%:@ (( |
| xyes | xno) |
| xc_lt_build_static=$enable_static |
| ;; |
| *) |
| AC_MSG_ERROR([unexpected libtool enable_static value: $enable_static]) |
| ;; |
| esac |
| dnl |
| m4_define([$0],[])dnl |
| ]) |
| |
| |
| dnl _XC_CHECK_LT_SHLIB_USE_VERSION_INFO |
| dnl ------------------------------------------------- |
| dnl Private macro. |
| dnl |
| dnl Checks if the -version-info linker flag must be |
| dnl provided when building libtool shared libraries. |
| dnl Result stored in xc_lt_shlib_use_version_info. |
| |
| m4_define([_XC_CHECK_LT_SHLIB_USE_VERSION_INFO], |
| [dnl |
| # |
| # Verify if libtool shared libraries should be linked using flag -version-info |
| # |
| |
| AC_MSG_CHECKING([whether to build shared libraries with -version-info]) |
| xc_lt_shlib_use_version_info='yes' |
| if test "x$version_type" = 'xnone'; then |
| xc_lt_shlib_use_version_info='no' |
| fi |
| case $host_os in @%:@ ( |
| amigaos*) |
| xc_lt_shlib_use_version_info='yes' |
| ;; |
| esac |
| AC_MSG_RESULT([$xc_lt_shlib_use_version_info]) |
| dnl |
| m4_define([$0], [])[]dnl |
| ]) |
| |
| |
| dnl _XC_CHECK_LT_SHLIB_USE_NO_UNDEFINED |
| dnl ------------------------------------------------- |
| dnl Private macro. |
| dnl |
| dnl Checks if the -no-undefined linker flag must be |
| dnl provided when building libtool shared libraries. |
| dnl Result stored in xc_lt_shlib_use_no_undefined. |
| |
| m4_define([_XC_CHECK_LT_SHLIB_USE_NO_UNDEFINED], |
| [dnl |
| # |
| # Verify if libtool shared libraries should be linked using flag -no-undefined |
| # |
| |
| AC_MSG_CHECKING([whether to build shared libraries with -no-undefined]) |
| xc_lt_shlib_use_no_undefined='no' |
| if test "x$allow_undefined" = 'xno'; then |
| xc_lt_shlib_use_no_undefined='yes' |
| elif test "x$allow_undefined_flag" = 'xunsupported'; then |
| xc_lt_shlib_use_no_undefined='yes' |
| fi |
| case $host_os in @%:@ ( |
| cygwin* | mingw* | pw32* | cegcc* | os2* | aix*) |
| xc_lt_shlib_use_no_undefined='yes' |
| ;; |
| esac |
| AC_MSG_RESULT([$xc_lt_shlib_use_no_undefined]) |
| dnl |
| m4_define([$0], [])[]dnl |
| ]) |
| |
| |
| dnl _XC_CHECK_LT_SHLIB_USE_MIMPURE_TEXT |
| dnl ------------------------------------------------- |
| dnl Private macro. |
| dnl |
| dnl Checks if the -mimpure-text linker flag must be |
| dnl provided when building libtool shared libraries. |
| dnl Result stored in xc_lt_shlib_use_mimpure_text. |
| |
| m4_define([_XC_CHECK_LT_SHLIB_USE_MIMPURE_TEXT], |
| [dnl |
| # |
| # Verify if libtool shared libraries should be linked using flag -mimpure-text |
| # |
| |
| AC_MSG_CHECKING([whether to build shared libraries with -mimpure-text]) |
| xc_lt_shlib_use_mimpure_text='no' |
| case $host_os in @%:@ ( |
| solaris2*) |
| if test "x$GCC" = 'xyes'; then |
| xc_lt_shlib_use_mimpure_text='yes' |
| fi |
| ;; |
| esac |
| AC_MSG_RESULT([$xc_lt_shlib_use_mimpure_text]) |
| dnl |
| m4_define([$0], [])[]dnl |
| ]) |
| |
| |
| dnl _XC_CHECK_LT_BUILD_WITH_PIC |
| dnl ------------------------------------------------- |
| dnl Private macro. |
| dnl |
| dnl Checks whether libtool shared and static libraries |
| dnl would be built with PIC depending on user input, |
| dnl default behavior and knowledge that libtool has |
| dnl about host characteristics. |
| dnl Results stored in following shell variables: |
| dnl xc_lt_build_shared_with_pic |
| dnl xc_lt_build_static_with_pic |
| |
| m4_define([_XC_CHECK_LT_BUILD_WITH_PIC], |
| [dnl |
| # |
| # Find out whether libtool libraries would be built with PIC |
| # |
| |
| case "x$pic_mode" in @%:@ (((( |
| xdefault) |
| xc_lt_build_shared_with_pic='yes' |
| xc_lt_build_static_with_pic='no' |
| ;; |
| xyes) |
| xc_lt_build_shared_with_pic='yes' |
| xc_lt_build_static_with_pic='yes' |
| ;; |
| xno) |
| xc_lt_build_shared_with_pic='no' |
| xc_lt_build_static_with_pic='no' |
| ;; |
| *) |
| xc_lt_build_shared_with_pic='unknown' |
| xc_lt_build_static_with_pic='unknown' |
| AC_MSG_WARN([unexpected libtool pic_mode value: $pic_mode]) |
| ;; |
| esac |
| AC_MSG_CHECKING([whether to build shared libraries with PIC]) |
| AC_MSG_RESULT([$xc_lt_build_shared_with_pic]) |
| AC_MSG_CHECKING([whether to build static libraries with PIC]) |
| AC_MSG_RESULT([$xc_lt_build_static_with_pic]) |
| dnl |
| m4_define([$0],[])dnl |
| ]) |
| |
| |
| dnl _XC_CHECK_LT_BUILD_SINGLE_VERSION |
| dnl ------------------------------------------------- |
| dnl Private macro. |
| dnl |
| dnl Checks whether a libtool shared or static library |
| dnl is finally built exclusively without the other. |
| dnl Results stored in following shell variables: |
| dnl xc_lt_build_shared_only |
| dnl xc_lt_build_static_only |
| |
| m4_define([_XC_CHECK_LT_BUILD_SINGLE_VERSION], |
| [dnl |
| # |
| # Verify if libtool shared libraries will be built while static not built |
| # |
| |
| AC_MSG_CHECKING([whether to build shared libraries only]) |
| if test "$xc_lt_build_shared" = 'yes' && |
| test "$xc_lt_build_static" = 'no'; then |
| xc_lt_build_shared_only='yes' |
| else |
| xc_lt_build_shared_only='no' |
| fi |
| AC_MSG_RESULT([$xc_lt_build_shared_only]) |
| |
| # |
| # Verify if libtool static libraries will be built while shared not built |
| # |
| |
| AC_MSG_CHECKING([whether to build static libraries only]) |
| if test "$xc_lt_build_static" = 'yes' && |
| test "$xc_lt_build_shared" = 'no'; then |
| xc_lt_build_static_only='yes' |
| else |
| xc_lt_build_static_only='no' |
| fi |
| AC_MSG_RESULT([$xc_lt_build_static_only]) |
| dnl |
| m4_define([$0],[])dnl |
| ]) |
| |
| |
| dnl _XC_LIBTOOL_POSTLUDE |
| dnl ------------------------------------------------- |
| dnl Private macro. |
| dnl |
| dnl Performs several checks related with libtool that |
| dnl can not be done unless libtool code has already |
| dnl been executed. See individual check descriptions |
| dnl for further info. |
| |
| m4_define([_XC_LIBTOOL_POSTLUDE], |
| [dnl |
| _XC_CHECK_LT_BUILD_LIBRARIES |
| _XC_CHECK_LT_SHLIB_USE_VERSION_INFO |
| _XC_CHECK_LT_SHLIB_USE_NO_UNDEFINED |
| _XC_CHECK_LT_SHLIB_USE_MIMPURE_TEXT |
| _XC_CHECK_LT_BUILD_WITH_PIC |
| _XC_CHECK_LT_BUILD_SINGLE_VERSION |
| dnl |
| m4_define([$0],[])dnl |
| ]) |
| |
| |
| dnl XC_LIBTOOL |
| dnl ------------------------------------------------- |
| dnl Public macro. |
| dnl |
| dnl This macro embeds libtool machinery into configure |
| dnl script, regardless of libtool version, and performs |
| dnl several additional checks whose results can be used |
| dnl later on. |
| dnl |
| dnl Usage of this macro ensures that generated configure |
| dnl script uses equivalent logic irrespective of autoconf |
| dnl or libtool version being used to generate configure |
| dnl script. |
| dnl |
| dnl Results stored in following shell variables: |
| dnl xc_lt_build_shared |
| dnl xc_lt_build_static |
| dnl xc_lt_shlib_use_version_info |
| dnl xc_lt_shlib_use_no_undefined |
| dnl xc_lt_shlib_use_mimpure_text |
| dnl xc_lt_build_shared_with_pic |
| dnl xc_lt_build_static_with_pic |
| dnl xc_lt_build_shared_only |
| dnl xc_lt_build_static_only |
| |
| AC_DEFUN([XC_LIBTOOL], |
| [dnl |
| AC_PREREQ([2.50])dnl |
| dnl |
| AC_BEFORE([$0],[LT_INIT])dnl |
| AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl |
| AC_BEFORE([$0],[AC_LIBTOOL_WIN32_DLL])dnl |
| dnl |
| AC_REQUIRE([XC_CHECK_PATH_SEPARATOR])dnl |
| AC_REQUIRE([AC_CANONICAL_HOST])dnl |
| AC_REQUIRE([AC_PROG_CC])dnl |
| dnl |
| _XC_LIBTOOL_PREAMBLE |
| _XC_LIBTOOL_BODY |
| _XC_LIBTOOL_POSTLUDE |
| dnl |
| m4_ifdef([AC_LIBTOOL_WIN32_DLL], |
| [m4_undefine([AC_LIBTOOL_WIN32_DLL])])dnl |
| m4_ifdef([AC_PROG_LIBTOOL], |
| [m4_undefine([AC_PROG_LIBTOOL])])dnl |
| m4_ifdef([LT_INIT], |
| [m4_undefine([LT_INIT])])dnl |
| dnl |
| m4_define([$0],[])dnl |
| ]) |