27 lines
1.2 KiB
Plaintext
27 lines
1.2 KiB
Plaintext
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# AC_COMPUTE_NEEDED_DSO(LIBRARY, PREPROC_SYMBOL)
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# --------------------------------------------------
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# Compute the 'actual' dynamic-library used
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# for LIBRARY and set it to PREPROC_SYMBOL
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AC_DEFUN([AC_COMPUTE_NEEDED_DSO],
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[
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AC_CACHE_CHECK([Checking for the 'actual' dynamic-library for '-l$1'], ac_cv_libname_$1,
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[
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echo 'int main(int argc, char **argv){return 0;}' > conftest.c
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if test -z "`${CC} ${LDFLAGS} -o conftest conftest.c -l$1 2>&1`"; then
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dnl Try objdump and ldd in that order to get the dynamic library
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if test ! -z "`which objdump | grep -v 'no objdump'`"; then
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ac_cv_libname_$1="`objdump -p conftest | grep NEEDED | grep $1 | sed 's/\W*NEEDED\W*\(.*\)\W*$/\"\1\"/'`"
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elif test ! -z "`which ldd | grep -v 'no ldd'`"; then
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ac_cv_libname_$1="`ldd conftest | grep $1 | sed 's/^[[[^A-Za-z0-9]]]*\([[[A-Za-z0-9\.]]]*\)[[[^A-Za-z0-9]]]*=>.*$/\"\1\"/'`"
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else
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AC_MSG_ERROR(Can't find either 'objdump' or 'ldd' to compute the dynamic library for '-l$1')
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fi
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else
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ac_cv_libname_$1=libnotfound.so
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fi
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rm -f conftest*
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]
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)
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AC_DEFINE_UNQUOTED($2, ${ac_cv_libname_$1}, [The 'actual' dynamic-library for '-l$1'])
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])# AC_COMPUTE_NEEDED_DSO
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