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#!/bin/bash
#
# Module for building shared libraries
# Sets:
# WITH_GNULD | WITH_OSXLD
# WITH_LDS - linker script support
mkl_require pic
function checks {
mkl_mkvar_append LIB_LDFLAGS LIB_LDFLAGS '-shared'
# Check what arguments to pass to CC or LD for shared libraries
mkl_meta_set gnulib name "GNU-compatible linker options"
mkl_meta_set osxlib name "OSX linker options"
if mkl_compile_check gnulib WITH_GNULD cont CC \
"-shared -Wl,-soname,mkltest.0" "" ; then
# GNU linker
mkl_mkvar_append LIB_LDFLAGS LIB_LDFLAGS '-Wl,-soname,$(LIBFILENAME)'
elif mkl_compile_check osxlib WITH_OSXLD cont CC \
"-dynamiclib -Wl,-install_name,/tmp/mkltest.so.0" ; then
# OSX linker
mkl_mkvar_append LIB_LDFLAGS LIB_LDFLAGS '-dynamiclib -Wl,-install_name,$(DESTDIR)$(libdir)/$(LIBFILENAME)'
fi
# Check what argument is needed for passing linker script.
local ldsfile=$(mktemp _mkltmpXXXXXX)
echo "{
global:
*;
};
" > $ldsfile
mkl_meta_set ldsflagvs name "GNU linker-script ld flag"
mkl_meta_set ldsflagm name "Solaris linker-script ld flag"
if mkl_compile_check ldsflagvs "" cont CC \
"-shared -Wl,--version-script=$ldsfile"; then
mkl_mkvar_set ldsflagvs LDFLAG_LINKERSCRIPT "-Wl,--version-script="
mkl_mkvar_set lib_lds WITH_LDS y
elif mkl_compile_check ldsflagm "" ignore CC \
"-shared -Wl,-M$ldsfile"; then
mkl_mkvar_set ldsflagm LDFLAG_LINKERSCRIPT "-Wl,-M"
mkl_mkvar_set lib_lds WITH_LDS y
fi
rm -f "$ldsfile"
}
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