42 lines
1.4 KiB
Diff
42 lines
1.4 KiB
Diff
diff --git a/libbuild2/cc/common.cxx b/libbuild2/cc/common.cxx
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index f848003c..0f14f9a5 100644
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--- a/libbuild2/cc/common.cxx
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+++ b/libbuild2/cc/common.cxx
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@@ -966,6 +966,17 @@ namespace build2
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void
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msvc_extract_library_search_dirs (const strings&, dir_paths&); // msvc.cxx
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+ static strings split (const string& s, const char delim) {
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+ stringstream ss (s);
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+ string item;
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+ strings result;
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+
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+ while (getline (ss, item, delim)) {
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+ result.push_back (item);
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+ }
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+ return result;
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+ }
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+
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dir_paths common::
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extract_library_search_dirs (const scope& bs) const
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{
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@@ -987,8 +998,19 @@ namespace build2
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msvc_extract_library_search_dirs (v, r);
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else
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gcc_extract_library_search_dirs (v, r);
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+
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};
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+ // NIX_LDFLAGS are implicitly used when linking,
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+ // so its -L flags effectively specify system dirs.
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+ // However, they are only enabled when actually linking and are thus
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+ // not detected by build2, so we need to manually pick them up here.
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+ if (auto s = getenv ("NIX_LDFLAGS")) {
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+ // TODO: do we need more robust args splitting here? e.g. shlex.split
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+ auto args = split (s.value (), ' ');
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+ gcc_extract_library_search_dirs (args, r);
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+ }
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+
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// Note that the compiler mode options are in sys_lib_dirs.
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//
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if (auto l = bs[c_loptions]) extract (*l, c_loptions);
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