diff options
Diffstat (limited to 'libstdc++-v3/testsuite/lib/libstdc++.exp')
| -rw-r--r-- | libstdc++-v3/testsuite/lib/libstdc++.exp | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/libstdc++-v3/testsuite/lib/libstdc++.exp b/libstdc++-v3/testsuite/lib/libstdc++.exp index 2dbf8217938..bcae3777e75 100644 --- a/libstdc++-v3/testsuite/lib/libstdc++.exp +++ b/libstdc++-v3/testsuite/lib/libstdc++.exp @@ -103,14 +103,7 @@ proc libstdc++_init { testfile } { # headers, or without assertions. global DEFAULT_CXXFLAGS if ![info exists DEFAULT_CXXFLAGS] then { - # Set up includes for stdc++.h.gch, the precompiled header file. - if { [file exists $flags_file] } { - set cxxpchflags [exec sh $flags_file --cxxpchflags] - } else { - set cxxpchflags "" - } - set DEFAULT_CXXFLAGS " ${cxxpchflags}" - + set DEFAULT_CXXFLAGS "" # Host specific goo here. if { [string match "powerpc-*-darwin*" $target_triplet] } { append DEFAULT_CXXFLAGS " -multiply_defined suppress" @@ -195,6 +188,28 @@ proc libstdc++_init { testfile } { } } + # If a PCH file is available, use it. We must delay performing + # this check until $cxx and such have been initialized because we + # perform a test compilation. (Ideally, gcc --print-file-name would + # list PCH files, but it does not.) + global PCH_CXXFLAGS + if ![info exists PCH_CXXFLAGS] then { + set src "config[pid].cc" + set f [open $src "w"] + puts $f "int main () {}" + close $f + + set lines [v3_target_compile $src "config[pid].o" object \ + "additional_flags=-include additional_flags=bits/stdc++.h"] + if {$lines == "" } { + set PCH_CXXFLAGS "-include bits/stdc++.h" + } else { + set PCH_CXXFLAGS "" + } + file delete $src + v3track PCH_CXXFLAGS 2 + } + libstdc++_maybe_build_wrapper "${objdir}/testglue.o" } |