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PCH is not being found any more???

I think the patch which added --enable-pch made the finding of if PCH is there disables PCH for every platform.

From my config.log in libstdc++:
configure:2838: checking for compiler that seems to compile .gch files
configure:2861: /home/gates/pinskia/src/gnu/gcc/src/objdir.linux/gcc/xgcc -shared-libgcc -B/home/gates/pinskia/src/gnu/gcc/src/objdir.linux/gcc/ -nostdinc++ -L/home/gates/pinskia/src/gnu/gcc/src/objdir.linux/i686-pc-linux-gnu/ libstdc++-v3/src -L/home/gates/pinskia/src/gnu/gcc/src/objdir.linux/i686-pc-linux-gnu/ libstdc++-v3/src/.libs -B/home/gates/pinskia/linux/i686-pc-linux-gnu/bin/ -B/home/gates/pinskia/linux/i686-pc-linux-gnu/lib/ -isystem /home/gates/pinskia/linux/i686-pc-linux-gnu/include -isystem /home/gates/pinskia/linux/i686-pc-linux-gnu/sys-include -c -Werror -Winvalid-pch -Wno-deprecated -x c++-header -O2 -g -O2 conftest.C 1>&5
configure: In function `int main()':
configure:2857: error: `yes' undeclared (first use this function)
configure:2857: error: (Each undeclared identifier is reported only once for
each function it appears in.)
configure: failed program was:
#line 2853 "configure"
#include "confdefs.h"
#include <math.h>

int main() {
; return 0; }

Andrew Pinski

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