1 files changed, 28 insertions, 0 deletions
diff --git a/ltnasm.sh b/ltnasm.sh
new file mode 100755
index 0000000..92c3c42
--- /dev/null
+++ b/ltnasm.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+# Translate libtool supplied C-compiler options for NASM.
+# libtool treats NASM like the C compiler, and may supply -f… options
+# which are interpreted as the output file format by NASM, causing errors.
+# Notably libtool will set -DPIC -fPIC and -fno-common;
+# we want to use -DPIC by translating it to -DPIC=1, but remove everything else
+#
+# Theoretically the way the filtering is done here in a plain POSIX shell script,
+# does mess up if there were spaces in any argument. However this will never happen
+# since neither our filenames nor options do not contain spaces and source paths
+# are not allowed to contain spaces by configure.
+
+cmd=""
+while [ "$#" -gt 0 ] ; do
+    case "$1" in
+        # NASM accepts both -f format and -fformat,
+        # we always use the former, and libtool supplied
+        # C-compiler options will always use the latter.
+        -f) cmd="$cmd $1" ;;
+        -f*) : ;;
+        -DPIC) cmd="$cmd -DPIC=1" ;;
+        *) cmd="$cmd $1" ;;
+    esac
+    shift
+done
+
+exec $cmd