Administrator@billhome/usr/local/jpeg-6b
$ ./configure --mandir=/usr/man --enable-shared --disable-static
checking for gcc... gcc
checking whether the C compiler (gcc  ) works... yes
checking whether the C compiler (gcc  ) is a cross-compiler... no
checking whether we are using GNU C... yes
checking how to run the C preprocessor... gcc -E
checking for function prototypes... yes
checking for stddef.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for size_t... yes
checking for type unsigned char... yes
checking for type unsigned short... yes
checking for type void... yes
checking for working const... yes
checking for inline... __inline__
checking for broken incomplete types... ok
checking for short external names... ok
checking to see if char is signed... yes
checking to see if right shift is signed... yes
checking to see if fopen accepts b spec... yes
checking for a BSD compatible install... /usr/bin/install -c
checking for ranlib... ranlib
checking host system type... i386-pc-cygwin32
checking for ranlib... ranlib
checking for gcc... gcc
checking whether we are using GNU C... yes
checking for gcc option to produce PIC... -fPIC
checking if gcc PIC flag -fPIC works... no
checking if gcc static flag -static works... -static
checking whether ln -s works... yes
checking for ld used by GCC... /usr/lib/gcc-lib/i686-pc-cygwin/3.2/../../../../i686-pc-cygwin/bin/ld.exe
checking if the linker (/usr/lib/gcc-lib/i686-pc-cygwin/3.2/../../../../i686-pc-cygwin/bin/ld.exe) is GNU ld... yes
checking whether the linker (/usr/lib/gcc-lib/i686-pc-cygwin/3.2/../../../../i686-pc-cygwin/bin/ld.exe) supports shared libraries... yes
checking for BSD-compatible nm... /usr/bin/nm -B
checking command to parse /usr/bin/nm -B output... no
checking how to hardcode library paths into programs... immediate
checking for /usr/lib/gcc-lib/i686-pc-cygwin/3.2/../../../../i686-pc-cygwin/bin/ld.exe option to reload object files... -r
checking dynamic linker characteristics... no
### checking if libtool supports shared libraries... no ###
### checking whether to build shared libraries... no ###
### checking whether to build static libraries... yes ###
checking for objdir... .libs
creating libtool
checking libjpeg version number... 62
creating ./config.status
creating Makefile
creating jconfig.h
jconfig.h is unchanged
********************************

 ... note the lines i marked with ### ###. This is not consistant with the paramaters given to ./configure.