1#!/usr/bin/env bash
2
3DIR="$1"
4
5if [ -d "$DIR" ]; then
6	DIR="$(cd "$DIR"; pwd)"
7else
8	echo "Usage: $0 toolchain-dir"
9	exit 1
10fi
11
12echo -n "Locating cpp ... "
13for bin in bin usr/bin usr/local/bin; do
14	for cmd in "$DIR/$bin/"*-cpp; do
15		if [ -x "$cmd" ]; then
16			echo "$cmd"
17			CPP="$cmd"
18			break
19		fi
20	done
21done
22
23if [ ! -x "$CPP" ]; then
24	echo "Can't locate a cpp executable in '$DIR' !"
25	exit 1
26fi
27
28patch_specs() {
29	local found=0
30
31	for lib in $(STAGING_DIR="$DIR" "$CPP" -x c -v /dev/null 2>&1 | sed -ne 's#:# #g; s#^LIBRARY_PATH=##p'); do
32		if [ -d "$lib" ]; then
33			grep -qs "STAGING_DIR" "$lib/specs" && rm -f "$lib/specs"
34			if [ $found -lt 1 ]; then
35				echo -n "Patching specs ... "
36				STAGING_DIR="$DIR" "$CPP" -dumpspecs | awk '
37					mode ~ "link" {
38						sub("%{L.}", "%{L*} -L %:getenv(STAGING_DIR /usr/lib) -rpath-link %:getenv(STAGING_DIR /usr/lib)")
39					}
40					mode ~ "cpp" {
41						$0 = $0 " -idirafter %:getenv(STAGING_DIR /usr/include)"
42					}
43					{
44						print $0
45						mode = ""
46					}
47					/^\*cpp:/ {
48						mode = "cpp"
49					}
50					/^\*link.*:/ {
51						mode = "link"
52					}
53				' > "$lib/specs"
54				echo "ok"
55				found=1
56			fi
57		fi
58	done
59
60	[ $found -gt 0 ]
61	return $?
62}
63
64
65VERSION="$(STAGING_DIR="$DIR" "$CPP" --version | sed -ne 's/^.* (.*) //; s/ .*$//; 1p')"
66VERSION="${VERSION:-unknown}"
67
68case "${VERSION##* }" in
69	2.*|3.*|4.0.*|4.1.*|4.2.*)
70		echo "The compiler version does not support getenv() in spec files."
71		echo -n "Wrapping binaries instead ... "
72
73		if "${0%/*}/ext-toolchain.sh" --toolchain "$DIR" --wrap "${CPP%/*}"; then
74			echo "ok"
75			exit 0
76		else
77			echo "failed"
78			exit $?
79		fi
80	;;
81	*)
82		if patch_specs; then
83			echo "Toolchain successfully patched."
84			exit 0
85		else
86			echo "Failed to locate library directory!"
87			exit 1
88		fi
89	;;
90esac
91