You shouldn't add C:MinGwlibexecgccmingw324.7.2
to the path.
Add: c:MinGWin
You may need to reboot to ensure that the path is made available to all processes properly.
Another suggestion is to use a different MinGW distribution. It's been a long time since I used an 'official' MinGW distribution because the installation steps were so byzantine and fragile. I've heard they've made large advances to the installer, but from what I hear it still seems to be rather complicated and fragile.
TDM's installer just works, but I think the TDM release isn't quite to 4.7.2.
The nuwen distribution's installation is just unpacking an archive where you want the thing (I love that!) and making sure the path points to the location of gcc.exe. Nuwen also packages the boost libraries, which is nice.
I case it helps, here's what I get from gcc -v hello.c
(c:mingw.4.7.2in
is in the path`):
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=c:/mingw.4.7.2/bin/../libexec/gcc/i686-pc-mingw32/4.7.2/lto-wrapper.exe
Target: i686-pc-mingw32
Configured with: ../src/configure --prefix=/c/temp/gcc/dest --with-gmp=/c/temp/gcc/gmp --with-mpfr=/c/temp/gcc/mpfr --with-mpc=/c/temp/gcc/mpc --enable-languages=c,c++ --with-arch=i686 --with-tune=generic --disable-libstdcxx-pch --disable-nls --disable-shared --disable-sjlj-exceptions --disable-win32-registry --enable-checking=release --enable-lto
Thread model: win32
gcc version 4.7.2 (GCC)
COLLECT_GCC_OPTIONS='-v' '-mtune=generic' '-march=i686'
c:/mingw.4.7.2/bin/../libexec/gcc/i686-pc-mingw32/4.7.2/cc1.exe -quiet -v -iprefix c:mingw.4.7.2in../lib/gcc/i686-pc-mingw32/4.7.2/ hello.c -quiet -dumpbase hello.c -mtune=generic -march=i686 -auxbase hello -version -o C:UsersmikebAppDataLocalTempcct1oltc.s
GNU C (GCC) version 4.7.2 (i686-pc-mingw32)
compiled by GNU C version 4.7.2, GMP version 5.0.5, MPFR version 3.1.1-p2, MPC version 1.0.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "c:mingw.4.7.2in../lib/gcc/i686-pc-mingw32/4.7.2/../../../../i686-pc-mingw32/include"
ignoring duplicate directory "c:/mingw.4.7.2/lib/gcc/../../lib/gcc/i686-pc-mingw32/4.7.2/include"
ignoring nonexistent directory "c:/temp/gcc/dest/include"
ignoring nonexistent directory "/c/temp/gcc/dest/include"
ignoring duplicate directory "c:/mingw.4.7.2/lib/gcc/../../lib/gcc/i686-pc-mingw32/4.7.2/include-fixed"
ignoring nonexistent directory "c:/mingw.4.7.2/lib/gcc/../../lib/gcc/i686-pc-mingw32/4.7.2/../../../../i686-pc-mingw32/include"
ignoring nonexistent directory "/mingw/include"
#include "..." search starts here:
#include <...> search starts here:
c:mingw.4.7.2in../lib/gcc/i686-pc-mingw32/4.7.2/include
c:mingw.4.7.2in../lib/gcc/i686-pc-mingw32/4.7.2/../../../../include
c:mingw.4.7.2in../lib/gcc/i686-pc-mingw32/4.7.2/include-fixed
End of search list.
GNU C (GCC) version 4.7.2 (i686-pc-mingw32)
compiled by GNU C version 4.7.2, GMP version 5.0.5, MPFR version 3.1.1-p2, MPC version 1.0.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 8461a53e6fc78ff58191bda61fe9586d
COLLECT_GCC_OPTIONS='-v' '-mtune=generic' '-march=i686'
as -v -o C:UsersmikebAppDataLocalTempccqRcYAj.o C:UsersmikebAppDataLocalTempcct1oltc.s
GNU assembler version 2.22 (i686-pc-mingw32) using BFD version (GNU Binutils) 2.22
COMPILER_PATH=c:/mingw.4.7.2/bin/../libexec/gcc/i686-pc-mingw32/4.7.2/;c:/mingw.4.7.2/bin/../libexec/gcc/
LIBRARY_PATH=c:/mingw.4.7.2/bin/../lib/gcc/i686-pc-mingw32/4.7.2/;c:/mingw.4.7.2/bin/../lib/gcc/;c:/mingw.4.7.2/bin/../lib/gcc/i686-pc-mingw32/4.7.2/../../../
COLLECT_GCC_OPTIONS='-v' '-mtune=generic' '-march=i686'
c:/mingw.4.7.2/bin/../libexec/gcc/i686-pc-mingw32/4.7.2/collect2.exe -Bdynamic c:/mingw.4.7.2/bin/../lib/gcc/i686-pc-mingw32/4.7.2/../../../crt2.o c:/mingw.4.7.2/bin/../lib/gcc/i686-pc-mingw32/4.7.2/crtbegin.o -Lc:/mingw.4.7.2/bin/../lib/gcc/i686-pc-mingw32/4.7.2 -Lc:/mingw.4.7.2/bin/../lib/gcc -Lc:/mingw.4.7.2/bin/../lib/gcc/i686-pc-mingw32/4.7.2/../../.. C:UsersmikebAppDataLocalTempccqRcYAj.o -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt c:/mingw.4.7.2/bin/../lib/gcc/i686-pc-mingw32/4.7.2/crtend.o
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