Mercurial > jdk8-mips64-public / file comparison
comparison: common/autoconf/build-performance.m4
common/autoconf/build-performance.m4
- changeset 512
- 582c696033f5
- parent 494
- e64f2cb57d05
- child 635
- 907a926d3c96
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| 511:c81c4a5d8b50 | 512:582c696033f5 |
|---|---|
| 202 # | 202 # |
| 203 # Can the C/C++ compiler use precompiled headers? | 203 # Can the C/C++ compiler use precompiled headers? |
| 204 # | 204 # |
| 205 AC_ARG_ENABLE([precompiled-headers], [AS_HELP_STRING([--disable-precompiled-headers], | 205 AC_ARG_ENABLE([precompiled-headers], [AS_HELP_STRING([--disable-precompiled-headers], |
| 206 [disable using precompiled headers when compiling C++ @<:@enabled@:>@])], | 206 [disable using precompiled headers when compiling C++ @<:@enabled@:>@])], |
| 207 [ENABLE_PRECOMPH=${enable_precompiled-headers}], [ENABLE_PRECOMPH=yes]) | 207 [ENABLE_PRECOMPH=${enable_precompiled_headers}], [ENABLE_PRECOMPH=yes]) |
| 208 | 208 |
| 209 USE_PRECOMPILED_HEADER=1 | 209 USE_PRECOMPILED_HEADER=1 |
| 210 if test "x$ENABLE_PRECOMPH" = xno; then | 210 if test "x$ENABLE_PRECOMPH" = xno; then |
| 211 USE_PRECOMPILED_HEADER=0 | 211 USE_PRECOMPILED_HEADER=0 |
| 212 fi | 212 fi |
| 213 | 213 |
| 214 if test "x$ENABLE_PRECOMPH" = xyes; then | 214 if test "x$ENABLE_PRECOMPH" = xyes; then |
| 215 # Check that the compiler actually supports precomp headers. | 215 # Check that the compiler actually supports precomp headers. |
| 216 if test "x$GCC" = xyes; then | 216 if test "x$GCC" = xyes; then |
| 217 AC_MSG_CHECKING([that precompiled headers work]) | 217 AC_MSG_CHECKING([that precompiled headers work]) |
| 218 echo "int alfa();" > conftest.h | 218 echo "int alfa();" > conftest.h |
| 219 $CXX -x c++-header conftest.h -o conftest.hpp.gch | 219 $CXX -x c++-header conftest.h -o conftest.hpp.gch 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD |
| 220 if test ! -f conftest.hpp.gch; then | 220 if test ! -f conftest.hpp.gch; then |
| 221 echo Precompiled header is not working! | |
| 222 USE_PRECOMPILED_HEADER=0 | 221 USE_PRECOMPILED_HEADER=0 |
| 223 AC_MSG_RESULT([no]) | 222 AC_MSG_RESULT([no]) |
| 224 else | 223 else |
| 225 AC_MSG_RESULT([yes]) | 224 AC_MSG_RESULT([yes]) |
| 226 fi | 225 fi |
| 227 rm -f conftest.h | 226 rm -f conftest.h conftest.hpp.gch |
| 228 fi | 227 fi |
| 229 fi | 228 fi |
| 230 | 229 |
| 231 AC_SUBST(USE_PRECOMPILED_HEADER) | 230 AC_SUBST(USE_PRECOMPILED_HEADER) |
| 232 ]) | 231 ]) |
