2500th COMMIT: ports: Add gcc port

I've had this laying around locally for a while. binutils was not
working so I didn't feel like this was worth pushing. My new stdio FILE
buffering rewrite fixed binutils and now gcc actually works!

ports/gcc/build.sh

@@ -0,0 +1,29 @@
+#!/bin/bash ../install.sh
+
+NAME='gcc'
+VERSION='12.2.0'
+DOWNLOAD_URL="https://ftp.gnu.org/gnu/gcc/gcc-$VERSION/gcc-$VERSION.tar.gz#ac6b317eb4d25444d87cf29c0d141dedc1323a1833ec9995211b13e1a851261c"
+DEPENDENCIES=('binutils' 'gmp' 'mpfr' 'mpc')
+CONFIGURE_OPTIONS=(
+	"--target=$BANAN_TOOLCHAIN_TRIPLE"
+	'--with-sysroot=/'
+	"--with-build-sysroot=$BANAN_SYSROOT"
+	'--enable-initfini-array'
+	'--enable-shared'
+	'--enable-lto'
+	'--disable-nls'
+	'--enable-languages=c,c++'
+)
+
+build() {
+	make -j$(nproc) all-gcc || exit 1
+	make -j$(nproc) all-target-libgcc || exit 1
+	make -j$(nproc) all-target-libstdc++-v3 || exit 1
+	find . -type f -executable -exec strip --strip-unneeded {} + 2>/dev/null
+}
+
+install() {
+	make install-gcc DESTDIR="$BANAN_SYSROOT" || exit 1
+	make install-target-libgcc DESTDIR="$BANAN_SYSROOT" || exit 1
+	make install-target-libstdc++-v3 DESTDIR="$BANAN_SYSROOT" || exit 1
+}

ports/gcc/patches/0001-force-little-endian.patch

@@ -0,0 +1,11 @@
+diff -ruN gcc-12.2.0/gcc/configure gcc-12.2.0-banan_os/gcc/configure
+--- gcc-12.2.0/gcc/configure	2022-08-19 11:09:52.736664469 +0300
++++ gcc-12.2.0-banan_os/gcc/configure	2024-08-08 09:30:58.730876253 +0300
+@@ -9426,6 +9426,7 @@
+ fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
+ $as_echo_n "checking whether byte ordering is bigendian... " >&6; }
++ac_cv_c_bigendian=no
+ if ${ac_cv_c_bigendian+:} false; then :
+   $as_echo_n "(cached) " >&6
+ else

ports/gcc/patches/gcc-12.2.0.patch

@@ -0,0 +1 @@
+../../../toolchain/gcc-12.2.0.patch