Enable Fortran compiler in all builds

When I first put w64devkit together, there were incompatibilities with
Binutils and supporting gfortran was difficult. It's been stable for
years, and I want to simplify the download options.

Dockerfile

@@ -101,7 +101,7 @@ RUN cat $PREFIX/src/gcc-*.patch | patch -d/gcc-$GCC_VERSION -p1 \
         --enable-static \
         --disable-shared \
         --with-pic \
-        --enable-languages=c,c++ \
+        --enable-languages=c,c++,fortran \
         --enable-libgomp \
         --enable-threads=posix \
         --enable-version-specific-runtime-libs \
@@ -263,7 +263,7 @@ RUN /gcc-$GCC_VERSION/configure \
         --with-mpc-lib=/deps/lib \
         --with-mpfr-include=/deps/include \
         --with-mpfr-lib=/deps/lib \
-        --enable-languages=c,c++ \
+        --enable-languages=c,c++,fortran \
         --enable-libgomp \
         --enable-threads=posix \
         --enable-version-specific-runtime-libs \
@@ -301,7 +301,7 @@ RUN $ARCH-gcc -DEXE=gcc.exe -DCMD=cc \
         -o $PREFIX/bin/c89.exe $PREFIX/src/alias.c -lkernel32 \
  && printf '%s\n' addr2line ar as c++filt cpp dlltool dllwrap elfedit g++ \
       gcc gcc-ar gcc-nm gcc-ranlib gcov gcov-dump gcov-tool ld nm objcopy \
-      objdump ranlib readelf size strings strip windmc windres \
+      objdump ranlib readelf size strings strip windmc windres gfortran \
     | xargs -I{} -P$(nproc) \
           $ARCH-gcc -DEXE={}.exe -DCMD=$ARCH-{} \
             -Os -fno-asynchronous-unwind-tables \

README.md

@@ -1,4 +1,4 @@
-# Portable C and C++ Development Kit for x64 Windows
+# Portable C, C++, and Fortran Development Kit for x64 and x86 Windows
 
 [w64devkit][] is a Dockerfile that builds from source a small, portable
 development suite for creating C and C++ applications on and for x64
@@ -83,12 +83,6 @@ then the hint is zeroed: "no data." Eliminating this random data makes
 binaries more compressible and *theoretically* faster loading. See also:
 `peports`.
 
-## Fortran support
-
-Only C and C++ are included by default, but w64devkit also has full
-support for Fortran. To build a Fortran compiler, add `fortran` to the
-`--enable-languages` lines in the Dockerfile.
-
 ## Recommended downloadable, offline documentation
 
 With a few exceptions, such as Vim's built-in documentation (`:help`),

multibuild.sh

@@ -20,8 +20,6 @@ usage: multibuild.sh [-48abfhnOs] [-s SUFFIX]
   -4         Enable i686 build (default: no)
   -8         Enable x86_64 build (default: auto)
   -a         All: Enable all builds
-  -b         Enable vanilla build (default: auto)
-  -f         Enable Fortran build (default: no)
   -h         Print this help message
   -n         Dry run, print commands but do nothing
   -O         Compact with advzip (default: no, less compatible)
@@ -33,9 +31,7 @@ while getopts 48abfhmnOs: opt; do
     case $opt in
         4) arch="$arch w64devkit-i686";;
         8) arch="$arch w64devkit";;
-        a) flavors="X -fortran"; arch="w64devkit w64devkit-i686";;
-        b) flavors="$flavors X";;
-        f) flavors="$flavors -fortran";;
+        a) flavors="X"; arch="w64devkit w64devkit-i686";;
         h) usage; exit 0;;
         n) dryrun=echo;;
         O) compact=yes;;