On attempting to compile Pascal code with gpc I get this message:

>> gpc -v -c my_alg_boolv2.p

Using built-in specs.
Configured with: ../configure --with-gcc --with-gnu-ld --with-gnu-as
--host=mingw32 --target=mingw32 --prefix=/mingw --enable-threads
--disable-nls --enable-languages=pascal --disable-win32-registry
--disable-shared --enable-sjlj-exceptions --without-x
--enable-interpreter --enable-hash-synchronization
Thread model: win32
gpc version 20051116, based on gcc-3.4.4 (mingw special)
gpc1 -v -iprefix c:/mingw/bin/mingw32/3.4.4/ my_alg_boolv2.p -quiet
-dumpbase my_alg_boolv2.p -famtmpfile=C:\Temp/cckFaaaa.gpa -version -o
C:\Temp/ccuabaaa.s
gpc: installation problem, cannot exec `gpc1': No such file or
directory

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I have these installed:

gpc 20051116, based on gcc-3.4.4 (mingw special)
gcc (GCC) 3.4.4 (mingw special)

I had thought that these two were meant to be compatible with each
other?!!

Have checked and the actual path for gpc1.exe is
C:\mingw\libexec\gcc\mingw32\3.4.4

Is there any way to fix this? Thanks in advance.