updated gnu repo

assets/var/gnu/gcc.md

@@ -0,0 +1,34 @@
+gcc 15.1.0
+=
+https://ftp.gnu.org/gnu/gcc/gcc-15.1.0/gcc-15.1.0.tar.xz
+
+
+``` sh *** patch ***
+rg -l "/lib64/ld-linux-x86-64.so.2" ./ | xargs sed -i 's|/lib64/ld-linux-x86-64.so.2|/pkg/gnu/lib/ld-linux-x86-64.so.2|g'
+```
+
+``` sh *** build ***
+mkdir build; cd build &&
+../configure \
+    --prefix=/pkg/gnu/gcc \
+    --disable-multilib \
+    --enable-languages=c,c++ \
+    --disable-werror &&
+make -j$(nproc) && make install && 
+ln /pkg/gnu/gcc/bin/gcc /pkg/gnu/gcc/bin/cc
+```
+
+``` cfg *** build deps ***
+gmp
+mpfr
+mpc
+isl
+zstd
+zlib
+```
+
+``` cfg *** run deps ***
+binutils
+ripgrep
+sed
+```