cups/config-scripts/cups-sharedlibs.m4

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dnl
dnl Shared library support for CUPS.
dnl
dnl Copyright © 2021 by OpenPrinting.
dnl Copyright © 2007-2018 by Apple Inc.
dnl Copyright © 1997-2005 by Easy Software Products, all rights reserved.
dnl
dnl Licensed under Apache License v2.0. See the file "LICENSE" for more
dnl information.
dnl
PICFLAG="1"
DSOFLAGS="${DSOFLAGS:=}"
AC_ARG_ENABLE([shared], AS_HELP_STRING([--disable-shared], [do not create shared libraries]))
cupsbase="cups"
LIBCUPSBASE="lib$cupsbase"
LIBCUPSIMAGE=""
LIBCUPSSTATIC="lib$cupsbase.a"
AS_IF([test x$enable_shared != xno], [
AS_CASE(["$host_os_name"], [sunos*], [
LIBCUPS="lib$cupsbase.so.2"
AS_IF([test "x$cupsimagebase" != x], [
LIBCUPSIMAGE="lib$cupsimagebase.so.2"
])
DSO="\$(CC)"
DSOXX="\$(CXX)"
DSOFLAGS="$DSOFLAGS -Wl,-h\`basename \$@\` -G"
], [linux* | gnu* | *bsd*], [
LIBCUPS="lib$cupsbase.so.2"
AS_IF([test "x$cupsimagebase" != x], [
LIBCUPSIMAGE="lib$cupsimagebase.so.2"
])
DSO="\$(CC)"
DSOXX="\$(CXX)"
DSOFLAGS="$DSOFLAGS -Wl,-soname,\`basename \$@\` -shared"
], [darwin*], [
LIBCUPS="lib$cupsbase.2.dylib"
AS_IF([test "x$cupsimagebase" != x], [
LIBCUPSIMAGE="lib$cupsimagebase.2.dylib"
])
DSO="\$(CC)"
DSOXX="\$(CXX)"
DSOFLAGS="$DSOFLAGS -Wl,-no_warn_inits -dynamiclib -single_module -lc"
], [aix*], [
LIBCUPS="lib$cupsbase.so.2"
AS_IF([test "x$cupsimagebase" != x], [
LIBCUPSIMAGE="lib$cupsimagebase.so.2"
])
DSO="\$(CC)"
DSOXX="\$(CXX)"
DSOFLAGS="$DSOFLAGS -Wl,-G -o \`basename \$@\`"
LDFLAGS="$LDFLAGS $TLSFLAGS -liconv -lz -lm"
], [*], [
AC_MSG_NOTICE([Warning: Shared libraries may not work, trying -shared option.])
LIBCUPS="lib$cupsbase.so.2"
AS_IF([test "x$cupsimagebase" != x], [
LIBCUPSIMAGE="lib$cupsimagebase.so.2"
])
DSO="\$(CC)"
DSOXX="\$(CXX)"
DSOFLAGS="$DSOFLAGS -Wl,-soname,\`basename \$@\` -shared"
])
], [
PICFLAG=0
LIBCUPS="lib$cupsbase.a"
AS_IF([test "x$cupsimagebase" != x], [
LIBCUPSIMAGE="lib$cupsimagebase.a"
])
DSO=":"
DSOXX=":"
])
AC_SUBST([DSO])
AC_SUBST([DSOXX])
AC_SUBST([DSOFLAGS])
AC_SUBST([LIBCUPS])
AC_SUBST([LIBCUPSBASE])
AC_SUBST([LIBCUPSIMAGE])
AC_SUBST([LIBCUPSSTATIC])
AS_IF([test x$enable_shared = xno], [
LINKCUPS="../cups/lib$cupsbase.a \$(LIBS)"
EXTLINKCUPS="-lcups \$LIBS"
], [
LINKCUPS="-L../cups -l${cupsbase}"
EXTLINKCUPS="-lcups"
])
AC_SUBST([EXTLINKCUPS])
AC_SUBST([LINKCUPS])
dnl Update libraries for DSOs...
EXPORT_LDFLAGS=""
AS_IF([test "$DSO" != ":"], [
# Tell the run-time linkers where to find a DSO. Some platforms
# need this option, even when the library is installed in a
# standard location...
AS_CASE([$host_os_name], [sunos*], [
# Solaris...
AS_IF([test $exec_prefix != /usr], [
DSOFLAGS="-R$libdir $DSOFLAGS"
LDFLAGS="$LDFLAGS -R$libdir"
EXPORT_LDFLAGS="-R$libdir"
])
], [*bsd*], [
# *BSD...
AS_IF([test $exec_prefix != /usr], [
DSOFLAGS="-Wl,-R$libdir $DSOFLAGS"
LDFLAGS="$LDFLAGS -Wl,-R$libdir"
EXPORT_LDFLAGS="-Wl,-R$libdir"
])
], [linux* | gnu*], [
# Linux, and HURD...
AS_IF([test $exec_prefix != /usr], [
DSOFLAGS="-Wl,-rpath,$libdir $DSOFLAGS"
LDFLAGS="$LDFLAGS -Wl,-rpath,$libdir"
EXPORT_LDFLAGS="-Wl,-rpath,$libdir"
])
])
])
AC_SUBST([EXPORT_LDFLAGS])