Empty llvm_version variable before loop

After the loop, the variable is checked for non-emptyness, and
non-empty values can be inherited from previous iterations of the
parent loop.

Author: thierry-martinez

packages/conf-libclang/conf-libclang.13/files/configure.sh

@@ -19,6 +19,7 @@ for version in default 13 12 11 10 9 8 7 6 5 4 3; do
            brew_llvm_config="$(brew --cellar)"/llvm*/${version}*/bin/llvm-config || true
            brew_llvm_config_at="$(brew --cellar)"/llvm@${version}/${version}*/bin/llvm-config || true
         fi
+        llvm_version=""
         for llvm_config in \
             llvm-config-${version} llvm-config-${version}.0 \
             llvm-config${version}0 llvm-config${version} \

packages/conf-libclang/conf-libclang.13/opam

@@ -41,7 +41,7 @@ x-ci-accept-failures: [
   "opensuse-15.3" # unavailable system package 'llvm-clang-devel'
 ]
 extra-files: [[
-  "configure.sh" "sha512=70cc1707be92274de1072551ee1175fc25c0157a916fd3f965cdcb7a94e6dfe0962bc7baff7a578ccb5595891ce691fc7a33442536eaa8744b92c9e896cd8dcb"
+  "configure.sh" "sha512=94c9d19667bda6ab913e5ad62ff6559d6e0a5cf95e4403065619ed299ac522679bf1f4c9d03c27bb57c7736e9c6edebf0a796edc33bd46816a665209903e2710"
 ]]
 synopsis: "Virtual package relying on the installation of llvm and clang libraries (<= 13.0.x)"
 flags: conf

packages/conf-libclang/conf-libclang.14/files/configure.sh

@@ -40,6 +40,7 @@ for version in default $(seq $maximum_version -1 3); do
            brew_llvm_config="$(brew --cellar llvm)"/${version}*/bin/llvm-config || true
            brew_llvm_config_at="$(brew --cellar llvm@${version})"/${version}*/bin/llvm-config || true
         fi
+        llvm_version=""
         for llvm_config in \
             llvm-config-${version} llvm-config-${version}.0 \
             llvm-config${version}0 llvm-config${version} \

packages/conf-libclang/conf-libclang.14/opam

@@ -37,7 +37,7 @@ x-ci-accept-failures: [
   "opensuse-15.3" # unavailable system package 'llvm-clang-devel'
 ]
 extra-files: [[
-  "configure.sh" "sha512=11d2a1abca89411efa218730490cb076a8400e266bfc1bdef5b4e60a84f2afe44dbd9036c8a1d9306046e0933430a6b06d31f5e04b97abb9d6fd08431ddae882"
+  "configure.sh" "sha512=27a0ddec4e5ccf895a279b910c7e0fe130f9b680d4771c409161d6ed5ebefcdc94d54fcb7625c40e49f83a6e1c5c4511b29ab8ddc3ce09f27ca8f77daf2c65be"
 ]]
 synopsis: "Virtual package relying on the installation of llvm and clang libraries (<= 14.0.x)"
 flags: conf