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27 lines
1.1 KiB
27 lines
1.1 KiB
--- a/hints/linux.sh
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+++ b/hints/linux.sh
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@@ -221,6 +221,24 @@ case "$libc" in
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;;
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esac
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+# Ubuntu 11.04 (and later, presumably) doesn't keep most libraries
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+# (such as -lm) in /lib or /usr/lib. So we have to ask gcc to tell us
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+# where to look. We don't want gcc's own libraries, however, so we
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+# filter those out.
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+# This could be conditional on Unbuntu, but other distributions may
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+# follow suit, and this scheme seems to work even on rather old gcc's.
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+# This unconditionally uses gcc because even if the user is using another
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+# compiler, we still need to find the math library and friends, and I don't
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+# know how other compilers will cope with that situation.
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+# Still, as an escape hatch, allow Configure command line overrides to
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+# plibpth to bypass this check.
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+case "$plibpth" in
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+'') plibpth=`gcc -print-search-dirs | grep libraries |
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+ cut -f2- -d= | tr ':' $trnl | grep -v 'gcc'`
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+ plibpth="$plibpth" # Collapse all entries on one line
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+ ;;
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+esac
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+
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# Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com>
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# for this test.
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cat >try.c <<'EOM'
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