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build: some systems provide dlopen() in libc

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libuv is packaged for OmniOS, an illumos distribution (OpenSolaris fork), and on that platform `libdl.so` is just a legacy stub library that does not need to be linked. `dlopen()` and friends are present in libc.

Changing to using `AC_SEARCH_LIBS()` instead of `AC_CHECK_LIB()` stops the unnecessary linking of libdl.

PR-URL: https://github.com/libuv/libuv/pull/3113
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jameson Nash <vtjnash@gmail.com>
This commit is contained in:
Andy Fiddaman 2021-05-12 22:51:36 +00:00 committed by GitHub
parent 882ee25346
commit defed50080
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1 changed files with 1 additions and 1 deletions
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configure.ac
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@ -43,7 +43,7 @@ AX_PTHREAD([
LIBS="$LIBS $PTHREAD_LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
])
AC_CHECK_LIB([dl], [dlopen])
AC_SEARCH_LIBS([dlopen], [dl])
AC_SEARCH_LIBS([kstat_lookup], [kstat])
AC_SEARCH_LIBS([gethostbyname], [nsl])
AC_SEARCH_LIBS([perfstat_cpu], [perfstat])