Oh you know what i am going to try the path to the pkg-config.exe and see what happens. =)
PKG_CONFIG - C:\msys\1.0\mingw\bin\pkg-config.exe

Ok that worked...except
Now i get this error at make

Compaq_Owner@FAMILY-ROOM ~/gegl-0.1.2
$ make
make all-recursive
make[1]: Entering directory `/home/Compaq_Owner/gegl-0.1.2'
Making all in gegl
make[2]: Entering directory `/home/Compaq_Owner/gegl-0.1.2/gegl'
Making all in buffer
make[3]: Entering directory `/home/Compaq_Owner/gegl-0.1.2/gegl/buffer'
CC gegl-tile-backend-tiledir.lo
In file included from gegl-tile-backend.h:22:0,
from gegl-tile-backend-tiledir.c:26:
gegl-tile-source.h:23:23: fatal error: babl/babl.h: No such file or directory
compilation terminated.
gcc.exe: C:usrlocalincludebabl-0.1babl: No such file or directory
make[3]: *** [gegl-tile-backend-tiledir.lo] Error 1
make[3]: Leaving directory `/home/Compaq_Owner/gegl-0.1.2/gegl/buffer'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/Compaq_Owner/gegl-0.1.2/gegl'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/Compaq_Owner/gegl-0.1.2'
make: *** [all] Error 2

Why in blazes is GCC calling up all those directories as one name?
ie... C:usrlocalincludebabl-0.1babl ...
Shouldn't it read C:/usr/local/include/babl-0.1/babl ??

Is that a script i can edit?

You've pretty much hit the point where I gave up on compiling in windows.

Sorry. I had hopes.

-Rob A.

That for 2.7 but did you managed to compile 2.6 ?

Gimp 2.6.10 only, I used the binaries of gegl and babl that were downloaded by the original script.

-Rob A>

and you still have a copt of the original script ?

I don't give up that easily, I will keep at it. =)
Heck, I have every dependency needed now, so the build environment is all set (i think)...
I just keep having this install GEGL problem.

One thing is for sure though, it builds a lot better and easier with Msys and MinGW, than cygwin.
Has anyone compiled 2.7.2 for linux yet?

yes,i did on ubuntu lucid lynx
i got some help (again from RobA ) anyway was quite easy once i was pointed on a tut to do it)

For that i suggested you to do first on linux, even if you don't know linux is much easier then in win (even if you know well win)

Check it out PC!
Almost there...
Compaq_Owner@FAMILY-ROOM ~
$ cd gimp-2.7.2

Compaq_Owner@FAMILY-ROOM ~/gimp-2.7.2
$ ./configure
checking for a BSD-compatible install... /bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.exe
checking for suffix of executables... .exe
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for style of include used by make... GNU
checking dependency style of gcc... gcc3
checking whether gcc and cc understand -c and -o together... yes
checking build system type... i686-pc-mingw32
checking host system type... i686-pc-mingw32
checking for as... as
checking for dlltool... dlltool
checking for objdump... objdump
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for fgrep... /bin/grep -F
checking for ld used by gcc... c:/msys/1.0/mingw/mingw32/bin/ld.exe
checking if the linker (c:/msys/1.0/mingw/mingw32/bin/ld.exe) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /mingw/bin/nm
checking the name lister (/mingw/bin/nm) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 8192
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking for c:/msys/1.0/mingw/mingw32/bin/ld.exe option to reload object files... -r
checking for objdump... (cached) objdump
checking how to recognize dependent libraries... file_magic ^x86 archive import|^x86 DLL
checking for ar... ar
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /mingw/bin/nm output from gcc object... ok
checking how to run the C preprocessor... gcc -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for dlfcn.h... no
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... no
checking for gcc option to produce PIC... -DDLL_EXPORT -DPIC
checking if gcc PIC flag -DDLL_EXPORT -DPIC works... yes
checking if gcc static flag -static works... yes
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (c:/msys/1.0/mingw/mingw32/bin/ld.exe) supports shared libraries... yes
checking whether -lc should be explicitly linked in... yes
checking dynamic linker characteristics... Win32 ld.exe
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... no
checking dependency style of gcc... gcc3
checking whether to enable maintainer-specific portions of Makefiles... no
checking pkg-config is at least version 0.16... yes
checking for target architecture... i686-pc-mingw32
checking for some Win32 platform... yes
checking for native Win32... yes
checking for lib.exe... yes
checking for windres... windres
checking for library containing strerror... none required
checking whether make sets $(MAKE)... (cached) yes
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... 64
checking whether to turn on debugging... no
checking whether to turn on profiling... no
checking whether gcc understands -Wdeclaration-after-statement... yes
checking whether gcc understands -Wmissing-prototypes... yes
checking whether gcc understands -Wstrict-prototypes... yes
checking whether gcc understands -Wmissing-declarations... yes
checking whether gcc understands -Winit-self... yes
checking whether gcc understands -Wpointer-arith... yes
checking whether gcc understands -Wold-style-definition... yes
checking whether gcc understands -Wmissing-format-attribute... yes
checking whether gcc understands -Wformat-security... yes
checking whether gcc understands -Wformat-non-literal... no
checking how to get MSVC-compatible struct packing... -mms-bitfields
checking for ANSI C header files... (cached) yes
checking for sys/wait.h that is POSIX.1 compatible... no
checking whether time.h and sys/time.h may both be included... yes
checking sys/param.h usability... yes
checking sys/param.h presence... yes
checking for sys/param.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking sys/times.h usability... no
checking sys/times.h presence... no
checking for sys/times.h... no
checking for sys/wait.h... (cached) no
checking for unistd.h... (cached) yes
checking for pid_t... yes
checking return type of signal handlers... void
checking for vprintf... yes
checking for _doprnt... no
checking for size_t... yes
checking for working alloca.h... no
checking for alloca... yes
checking for fsync... no
checking for difftime... yes
checking for mmap... no
checking whether binary relocation support should be enabled... no
checking for _NL_MEASUREMENT_MEASUREMENT... no
checking whether NLS is requested... yes
checking for intltool >= 0.40.1... 0.40.4 found
checking for intltool-update... /mingw/bin/intltool-update
checking for intltool-merge... /mingw/bin/intltool-merge
checking for intltool-extract... /mingw/bin/intltool-extract
checking for xgettext... /mingw/bin/xgettext
checking for msgmerge... /mingw/bin/msgmerge
checking for msgfmt... /mingw/bin/msgfmt
checking for gmsgfmt... /mingw/bin/msgfmt
checking for perl... /c/Perl/bin/perl
checking for perl >= 5.8.1... 5.8.9
checking for XML::Parser... ok
checking locale.h usability... yes
checking locale.h presence... yes
checking for locale.h... yes
checking for LC_MESSAGES... no
checking libintl.h usability... yes
checking libintl.h presence... yes
checking for libintl.h... yes
checking for ngettext in libc... no
checking for bindtextdomain in -lintl... yes
checking for ngettext in -lintl... yes
checking for dgettext in -lintl... yes
checking for bind_textdomain_codeset... yes
checking for msgfmt... (cached) /mingw/bin/msgfmt
checking for dcgettext... yes
checking if msgfmt accepts -c... yes
checking for gmsgfmt... (cached) /mingw/bin/msgfmt
checking for xgettext... (cached) /mingw/bin/xgettext
checking for iso-codes... yes
checking for BABL... yes
checking for GEGL... yes
checking pkg-config is at least version 0.16... yes
checking for GLIB - version >= 2.24.0... yes (version 2.24.2)
checking for GMODULE_NO_EXPORT... yes
checking for GIO... yes
checking if GLib is version 2.26.0 or newer... no
checking for bind_textdomain_codeset... (cached) yes
checking for X... no
checking for pkg-config... C:\msys\1.0\mingw\bin\pkg-config.exe
checking for GTK+ - version >= 2.20.0... yes (version 2.20.1)
checking if GTK+ is version 2.24.0 or newer... no
checking for GDK_PIXBUF... yes
checking for gdk-pixbuf-csource... /mingw/bin/gdk-pixbuf-csource
checking for CAIRO... yes
checking for PANGOCAIRO... yes
checking for FONTCONFIG... yes
checking if Pango is version 1.30.0 or newer... no
checking if Pango is built with a recent fontconfig... yes
checking for freetype-config... /mingw/bin/freetype-config
checking for freetype libraries... -L/mingw/bin/../lib -lfreetype
checking math.h usability... yes
checking math.h presence... yes
checking for math.h... yes
checking ieeefp.h usability... no
checking ieeefp.h presence... no
checking for ieeefp.h... no
checking for extra flags to get ANSI library prototypes... none needed
checking for finite... yes
checking for extra flags for POSIX compliance... none needed
checking for rint... yes
checking for getaddrinfo... no
checking for getaddrinfo in -lnsl... no
checking for getnameinfo... no
checking for getnameinfo in -lnsl... no
checking for socket in -lsocket... no
checking whether gcc understands -mmmx... yes
checking whether we can compile MMX code... yes
checking whether gcc understands -msse... yes
checking whether we can compile SSE code... yes
checking for shared memory transport type... win32
checking whether symbols are prefixed... yes, with a _
checking for TIFFReadScanline in -ltiff... yes
checking tiffio.h usability... yes
checking tiffio.h presence... yes
checking for tiffio.h... yes
checking for jpeg_destroy_decompress in -ljpeg... yes
checking for jpeglib.h... yes
checking for jpeg_save_markers in -ljpeg... yes
checking for gzsetparams in -lz... yes
checking zlib.h usability... yes
checking zlib.h presence... yes
checking for zlib.h... yes
checking for PNG... yes
checking for mng_create in -lmng... no
checking for EXIF... no
checking for aa_printf in -laa... no
checking for XpmReadFileToXpmImage in -lXpm... no
checking for WEBKIT... no
checking for SVG... yes
checking for POPPLER... yes
checking for CAIRO_PDF... yes
checking for CURL... no
checking for libwmf-config... no
checking for jas_init in -ljasper... no
configure: WARNING: *** JP2 plug-in will not be built (JasPer library not found) ***
checking for LCMS... no
checking for XMC... no
checking for ALSA CFLAGS...
checking for ALSA LDFLAGS... -lasound -lm -ldl -lpthread
checking for libasound headers version >= 1.0.0... not present.
checking for snd_ctl_open in -lasound... no
checking linux/input.h usability... no
checking linux/input.h presence... no
checking for linux/input.h... no
checking for DBUS_GLIB... no
checking for sendmail... no
checking for perl5... no
checking for perl... /c/Perl/bin/perl
checking for a Python interpreter with version >= 2.5.0... none
configure: error:
*** Could not find Python 2.5.0 or newer.
*** Please install it, or skip building the python scripting extension by
*** passing --disable-python to configure (but then you will not be able
*** to use scripts for GIMP that are written in Python).

Compaq_Owner@FAMILY-ROOM ~/gimp-2.7.2

Now to get the path environment variable correct with Python (i have 2.5 - 2.6 - and 2.7 installed).
I think it would be nice to go ahead and compile without the Python just to see if it works.
I will keep you posted. =)

i think python 2.5 is the only compatible,things may be changed but i would not risk with 2.6 even less with 2.7