The Tor Browser / file comparison
comparison: build/autoconf/lto.m4
build/autoconf/lto.m4
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:09ff32d29aa8 |
|---|---|
| 1 dnl This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 dnl License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 dnl file, You can obtain one at http://mozilla.org/MPL/2.0/. | |
| 4 | |
| 5 dnl check if the build is using lto. This is really primitive and only detects llvm based | |
| 6 dnl compilers right now. | |
| 7 AC_DEFUN([MOZ_DOING_LTO], | |
| 8 [ | |
| 9 cat > conftest.c <<EOF | |
| 10 int foo = 1; | |
| 11 EOF | |
| 12 $1=no | |
| 13 if ${CC-cc} ${CFLAGS} -S conftest.c -o conftest.s >/dev/null 2>&1; then | |
| 14 if grep '^target triple =' conftest.s; then | |
| 15 $1=yes | |
| 16 fi | |
| 17 fi | |
| 18 rm -f conftest.[cs] | |
| 19 ]) |
