diff --git a/.github/scripts/build-package.sh b/.github/scripts/build-package.sh
index 73101d3..8774f88 100755
--- a/.github/scripts/build-package.sh
+++ b/.github/scripts/build-package.sh
@@ -9,15 +9,18 @@ PACKAGE_REPOSITORY=$1
 CLEAN_BUILD=${CLEAN_BUILD:-0}
 INSTALL_PACKAGE=${INSTALL_PACKAGE:-0}
 NO_EXTRACT=${NO_EXTRACT:-0}
+NO_CHECK=${NO_CHECK:-1}
+NO_ARCHIVE=${NO_ARCHIVE:-0}
 
 ARGUMENTS="--syncdeps \
     --rmdeps \
     --noconfirm \
     --noprogressbar \
-    --nocheck \
     --skippgpcheck \
     --force \
     $([ "$NO_EXTRACT" = 1 ] && echo "--noextract" || echo "") \
+    $([ "$NO_CHECK" = 1 ] && echo "--nocheck " || echo "") \
+    $([ "$NO_ARCHIVE" = 1 ] && echo "--noarchive" || echo "") \
     $([ "$CLEAN_BUILD" = 1 ] && echo "--cleanbuild" || echo "") \
     $([ "$INSTALL_PACKAGE" = 1 ] && echo "--install" || echo "")"
 
diff --git a/.github/scripts/patch-dejagnu.sh b/.github/scripts/patch-dejagnu.sh
new file mode 100755
index 0000000..acf858a
--- /dev/null
+++ b/.github/scripts/patch-dejagnu.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -e # exit on error
+set -x # echo on
+set -o pipefail # fail of any command in pipeline is an error
+
+DIR="`dirname ${BASH_SOURCE[0]}`/../.."
+DIR=`realpath $DIR`
+
+pushd /
+  echo "::group::Patch Dejagnu"
+    patch -p1 -b -i "$DIR/patches/dejagnu/0001-local-exec.patch"
+  echo "::endgroup::"
+popd
diff --git a/.github/workflows/build-and-test-mingw-w64-gcc.yml b/.github/workflows/build-and-test-mingw-w64-gcc.yml
new file mode 100644
index 0000000..5d5bb95
--- /dev/null
+++ b/.github/workflows/build-and-test-mingw-w64-gcc.yml
@@ -0,0 +1,78 @@
+name: Build and test mingw-w64-gcc
+
+on:
+  pull_request:
+  workflow_dispatch:
+    inputs:
+      packages_repository:
+        description: "MSYS2 packages repository to build from"
+        type: string
+        default: "Windows-on-ARM-Experiments/MINGW-packages"
+      packages_branch:
+        description: "MSYS2 packages branch to build from"
+        type: string
+        default: "woarm64"
+      arch:
+        description: 'Architecture that should be built and tested'
+        required: false
+        default: 'x86_64'
+      tag:
+        description: 'Tag to use for the artifact'
+        required: true
+      gcc_module:
+        description: 'GCC module to test'
+        required: false
+        default: ''
+      gcc_test_filter:
+        description: 'GCC test filter'
+        required: false
+        default: ''
+  workflow_call:
+    inputs:
+      packages_repository:
+        type: string
+      packages_branch:
+        type: string
+      arch:
+        type: string
+      tag:
+        type: string
+      gcc_module:
+        type: string
+      gcc_test_filter:
+        type: string
+
+jobs:
+  build-and-test-mingw-w64-gcc:
+    name: Build and test mingw-w64-gcc
+    uses: ./.github/workflows/build-package.yml
+    with:
+      package_name: mingw-w64-gcc
+      packages_repository: ${{ inputs.packages_repository || 'Windows-on-ARM-Experiments/MINGW-packages' }}
+      packages_branch: ${{ inputs.packages_branch || 'woarm64' }}
+      runner_arch: ${{ inputs.arch || 'x86_64' }}
+      target_arch: ${{ inputs.arch || 'x86_64' }}
+      check: true
+      check_module: ${{ inputs.gcc_module || 'gcc-c' }}
+      check_filter: ${{ inputs.gcc_test_filter || 'compile.exp=103818.c' }}
+
+  create-summary:
+    needs: build-and-test-mingw-w64-gcc
+    name: Create summary
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout mingw-woarm64-build repository
+        uses: actions/checkout@v4
+        with:
+          repository: Windows-on-ARM-Experiments/mingw-woarm64-build
+
+      - name: Download test results artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: mingw-w64-gcc-test-results
+          path: ${{ github.workspace }}/test-results
+
+      - name: Create summary
+        run: |
+          .github/scripts/toolchain/create-gcc-summary.sh ${{ github.workspace }}/test-results >> $GITHUB_STEP_SUMMARY
diff --git a/.github/workflows/build-package.yml b/.github/workflows/build-package.yml
index ebf39a6..2aece03 100644
--- a/.github/workflows/build-package.yml
+++ b/.github/workflows/build-package.yml
@@ -6,6 +6,22 @@ on:
       package_name:
         description: "Package name to build"
         type: string
+      packages_repository:
+        description: "MSYS2 packages repository to build from"
+        type: string
+        default: "Windows-on-ARM-Experiments/MSYS2-packages"
+      packages_branch:
+        description: "MSYS2 packages branch to build from"
+        type: string
+        default: "woarm64"
+      runner_arch:
+        description: "Architecture to build on"
+        type: string
+        default: "x86_64"
+      target_arch:
+        description: "Architecture to build for"
+        type: string
+        default: "aarch64"
       needs:
         description: "Parent workflow job dependencies"
         type: string
@@ -13,14 +29,18 @@ on:
         description: "Install additional dependencies"
         type: string
         default: ""
-      packages_repository:
-        description: "MSYS2 packages repository to build from"
+      check:
+        description: "Enable check step after the package is built"
+        type: boolean
+        default: false
+      check_module:
+        description: "Module to test"
         type: string
-        default: "Windows-on-ARM-Experiments/MSYS2-packages"
-      packages_branch:
-        description: "MSYS2 packages branch to build from"
+        default: ""
+      check_filter:
+        description: "Test filter"
         type: string
-        default: "woarm64"
+        default: ""
 
 defaults:
   run:
@@ -29,14 +49,20 @@ defaults:
 env:
   GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   CLEAN_BUILD: 1
+  NO_CHECK: ${{ inputs.check && '0' || '1' }}
+  NO_ARCHIVE: ${{ inputs.check && '1' || '0' }}
+  MODULE: ${{ inputs.check_module }}
+  FILTER: ${{ inputs.check_filter }}
 
 jobs:
   build:
     name: Build ${{ inputs.package_name }}
-    runs-on: ${{ fromJson(contains(inputs.packages_repository, 'MINGW') && '["Windows", "ARM64", "Blackhex"]' || '["windows-latest"]') }}
+    runs-on: ${{ fromJson(inputs.runner_arch == 'aarch64' && '["Windows", "ARM64", "Blackhex"]' || '["windows-latest"]') }}
+    timeout-minutes: ${{ inputs.check && 720 || 180 }}
 
     steps:
       - name: Kill hanging processes
+        if: ${{ inputs.runner_arch == 'aarch64' }}
         shell: powershell
         run: |
           tasklist
@@ -57,11 +83,13 @@ jobs:
           exit 0
 
       - name: Fix Git long paths
+        if: ${{ inputs.runner_arch == 'aarch64' }}
         shell: powershell
         run: |
           git config --global core.longpaths true
 
       - name: Fix $PATH
+        if: ${{ inputs.runner_arch == 'aarch64' }}
         shell: powershell
         run: |
           Write-Output "GITHUB_PATH: $env:GITHUB_PATH"
@@ -71,40 +99,54 @@ jobs:
         timeout-minutes: 10
         with:
           msystem: ${{ contains(inputs.packages_repository, 'MINGW') && 'MINGW64' || 'MSYS' }}
-          update: false
-          cache: false
+          update: ${{ inputs.runner_arch == 'x86_64' }}
+          cache: ${{ inputs.runner_arch == 'x86_64' }}
 
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: Checkout ${{ inputs.packages_repository }} repository
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ inputs.packages_repository }}
+          ref: ${{ inputs.packages_branch }}
+          sparse-checkout: ${{ inputs.package_name }}
+          path: ${{ github.workspace }}/packages
+
       - name: Pacman hang workaround
+        if: ${{ inputs.runner_arch == 'aarch64' }}
         run: |
           `cygpath "${{ github.workspace }}"`/.github/scripts/pacman-workaround.sh
 
       - name: First MSYS2 update
+        if: ${{ inputs.runner_arch == 'aarch64' }}
         shell: powershell
         run: |
           msys2 -c 'pacman -Syuu --noconfirm'
           exit 0
 
       - name: Second MSYS2 update
+        if: ${{ inputs.runner_arch == 'aarch64' }}
         shell: powershell
         run: |
           msys2 -c 'pacman -Syuu --noconfirm'
 
       - name: Setup packages repository
+        if: ${{ inputs.target_arch == 'aarch64' }}
         run: |
           `cygpath "${{ github.workspace }}"`/.github/scripts/setup-repository.sh
 
       - name: Install dependencies
         run: |
+          echo '${{ inputs.check }}'
           pacman -S --noconfirm \
             git \
             mingw-w64-x86_64-github-cli \
             mingw-w64-x86_64-jq \
             base-devel \
-            ${{ contains(inputs.packages_repository, 'MINGW') &&
-              'mingw-w64-cross-gcc mingw-w64-cross-windows-default-manifest mingw-w64-x86_64-gcc-libs' || '' }} \
+            ${{ contains(inputs.packages_repository, 'MINGW') && format('{0}-{1}-{2}', 'mingw-w64', inputs.target_arch, 'gcc') || '' }} \
+            ${{ contains(inputs.packages_repository, 'MINGW') && (inputs.target_arch == 'aarch64') && 'mingw-w64-cross-windows-default-manifest mingw-w64-x86_64-gcc-libs' || '' }} \
+            ${{ inputs.check && 'dejagnu' || '' }} \
             ${{ inputs.dependencies }}
 
       - name: Download artifacts
@@ -122,16 +164,13 @@ jobs:
         run: |
           `cygpath "${{ github.workspace }}"`/.github/scripts/pthread-headers-hack-before.sh
 
-      - name: Checkout ${{ inputs.packages_repository }} repository
-        uses: actions/checkout@v4
-        with:
-          repository: ${{ inputs.packages_repository }}
-          ref: ${{ inputs.packages_branch }}
-          sparse-checkout: ${{ inputs.package_name }}
-          path: ${{ github.workspace }}/packages
+      - name: Patch Dejagnu
+        if: ${{ inputs.check }}
+        run: |
+          `cygpath "${{ github.workspace }}"`/.github/scripts/patch-dejagnu.sh
 
       - name: Setup cross-compilation environment
-        if: ${{ contains(inputs.packages_repository, 'MINGW') }}
+        if: ${{ inputs.target_arch == 'aarch64' }}
         run: |
           `cygpath "${{ github.workspace }}"`/.github/scripts/setup-cross-compilation.sh
 
@@ -147,7 +186,7 @@ jobs:
           key: main-ccache-${{ steps.enable-ccache.outputs.timestamp }}
           restore-keys: main-ccache-
 
-      - name: Build ${{ inputs.package_name }}
+      - name: Build ${{ inputs.check && 'and test' || '' }} ${{ inputs.package_name }}
         working-directory: ${{ github.workspace }}/packages/${{ inputs.package_name }}
         run: |
           `cygpath "${{ github.workspace }}"`/.github/scripts/build-package.sh ${{ inputs.packages_repository }}
@@ -160,12 +199,21 @@ jobs:
           key: main-ccache-${{ steps.enable-ccache.outputs.timestamp }}
 
       - name: Upload ${{ inputs.package_name }}
+        if: ${{ !inputs.check }}
         uses: actions/upload-artifact@v4
         with:
           name: ${{ inputs.package_name }}
           retention-days: 1
           path: ${{ github.workspace }}/packages/${{ inputs.package_name }}/*.pkg.tar.zst
 
+      - name: Upload ${{ inputs.package_name }} test results
+        if: ${{ inputs.check }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ inputs.package_name }}-test-results
+          retention-days: 14
+          path: ${{ github.workspace }}/packages/${{ inputs.package_name }}/src/test-results
+
       - name: Upload build folder
         if: failure()
         uses: actions/upload-artifact@v4
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c468c92..e3f1d3c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - main
-  pull_request:
   workflow_dispatch:
     inputs:
       msys2_packages_branch:
diff --git a/patches/dejagnu/0001-local-exec.patch b/patches/dejagnu/0001-local-exec.patch
new file mode 100644
index 0000000..86d664b
--- /dev/null
+++ b/patches/dejagnu/0001-local-exec.patch
@@ -0,0 +1,159 @@
+--- a/usr/share/dejagnu/remote.exp
++++ b/usr/share/dejagnu/remote.exp
+@@ -164,14 +164,7 @@
+     # ignore SIGHUP.
+     global errorInfo
+     if { $inp eq "" && $outp eq "" } {
+-	set id -1
+-	set result [catch "eval spawn -ignore SIGHUP \{${commandline}\}" pid]
+-	if { $result == 0 } {
+-	    set result2 0
+-	} else {
+-	    set pid 0
+-	    set result2 5
+-	}
++	set status [catch "exec timeout -k 5 10 $commandline" output]
+     } else {
+ 	# Use a command pipeline with open.
+ 	if { $inp ne "" } {
+@@ -205,78 +198,80 @@
+ 	}
+ 	set pid [pid $id]
+ 	set result [catch "spawn -ignore SIGHUP -leaveopen $id" result2]
+-    }
+-    # Prepend "-" to each pid, to generate the "process group IDs" needed by
+-    # kill.
+-    set pgid "-[join $pid { -}]"
+-    verbose "pid is $pid $pgid"
+-    if { $result != 0 || $result2 != 0 } {
+-	# This shouldn't happen.
+-	if {[info exists errorInfo]} {
+-	    set foo $errorInfo
+-	} else {
+-	    set foo ""
++
++	# Prepend "-" to each pid, to generate the "process group IDs" needed by
++	# kill.
++	set pgid "-[join $pid { -}]"
++	verbose "pid is $pid $pgid"
++ 	if { $result != 0 || $result2 != 0 } {
++	    # This shouldn't happen.
++	    if {[info exists errorInfo]} {
++		set foo $errorInfo
++	    } else {
++		set foo ""
++	    }
++	    verbose "spawn -open $id failed, $result $result2, $foo"
++	    catch "close $id"
++	    return [list -1 "spawn failed"]
+ 	}
+-	verbose "spawn -open $id failed, $result $result2, $foo"
+-	catch "close $id"
+-	return [list -1 "spawn failed"]
+-    }
+ 
+-    set got_eof 0
+-    set output ""
++	set got_eof 0
++	set output ""
+ 
+-    # Wait for either $timeout seconds to elapse, or for the program to
+-    # exit.
+-    expect {
+-	-i $spawn_id -timeout $timeout -re ".+" {
+-	    append output $expect_out(buffer)
+-	    exp_continue -continue_timer
+-	}
+-	timeout {
+-	    warning "program timed out"
+-	}
+-	eof {
+-	    set got_eof 1
++	# Wait for either $timeout seconds to elapse, or for the program to
++	# exit.
++	expect {
++	    -i $spawn_id -timeout $timeout -re ".+" {
++		append output $expect_out(buffer)
++		exp_continue -continue_timer
++	    }
++	    timeout {
++		warning "program timed out"
++	    }
++	    eof {
++		set got_eof 1
++	    }
+ 	}
+-    }
+ 
+-    # If we didn't get EOF, we have to kill the poor defenseless program.
+-    if { $got_eof } {
+-	set pid -1
+-    }
+-    set r2 [close_wait_program $spawn_id $pid wres]
+-    if { $id > 0 } {
+-	if { $pid > 0 } {
+-	    # If timed-out, don't wait for all the processes associated
+-	    # with the pipeline to terminate as a stuck one would cause
+-	    # us to hang.
+-	    catch {fconfigure $id -blocking false}
++	# If we didn't get EOF, we have to kill the poor defenseless program.
++	if { $got_eof } {
++	    set pid -1
+ 	}
+-	set r2 [catch "close $id" res]
+-    } else {
+-	verbose "waitres is $wres" 2
+-	if { $r2 == 0 } {
+-	    set r2 [lindex $wres 3]
+-	    if { [llength $wres] > 4 } {
+-		if { [lindex $wres 4] eq "CHILDKILLED" } {
+-		    set r2 1
+-		}
++	set r2 [close_wait_program $spawn_id $pid wres]
++	if { $id > 0 } {
++	    if { $pid > 0 } {
++		# If timed-out, don't wait for all the processes associated
++		# with the pipeline to terminate as a stuck one would cause
++		# us to hang.
++		catch {fconfigure $id -blocking false}
+ 	    }
+-	    if { $r2 != 0 } {
+-		set res $wres
++	    set r2 [catch "close $id" res]
++	} else {
++	    verbose "waitres is $wres" 2
++	    if { $r2 == 0 } {
++		set r2 [lindex $wres 3]
++		if { [llength $wres] > 4 } {
++		    if { [lindex $wres 4] eq "CHILDKILLED" } {
++			set r2 1
++		    }
++		}
++		if { $r2 != 0 } {
++		    set res $wres
++		} else {
++		    set res ""
++		}
+ 	    } else {
+-		set res ""
++		set res "wait failed"
+ 	    }
++	}
++	if { $r2 != 0 || $res ne "" || ! $got_eof } {
++	    verbose "close result is $res"
++	    set status 1
+ 	} else {
+-	    set res "wait failed"
++	    set status 0
+ 	}
+     }
+-    if { $r2 != 0 || $res ne "" || ! $got_eof } {
+-	verbose "close result is $res"
+-	set status 1
+-    } else {
+-	set status 0
+-    }
++
+     verbose "output is $output status $status"
+     if { $outp eq "" || $outp eq "|& cat" } {
+ 	return [list $status $output]