diff --git a/.github/workflows/developer.yml b/.github/workflows/developer.yml
index 3e9117dd..6ef4204c 100644
--- a/.github/workflows/developer.yml
+++ b/.github/workflows/developer.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        config: ["asan", "code coverage", "memcheck", "docs", "format"]
+        config: ["asan", "code coverage", "memcheck", "docs", "format", "warning"]
 
     steps:
     - name: install-dependencies
@@ -73,16 +73,24 @@ jobs:
       run: |
         set -x
         export CC=gcc
-        cmake -S g2c -B g2c/build -DUSE_AEC=ON -DJasper_ROOT=$GITHUB_WORKSPACE/nceplibs/jasper -DBUILD_G2C=ON -DLOGGING=On -DPTHREADS=ON -DFTP_TEST_FILES=ON -DFTP_LARGE_TEST_FILES=OFF -DTEST_FILE_DIR=/home/runner/data -DCMAKE_BUILD_TYPE=Debug-DCMAKE_C_FLAGS="-Werror -g -O0 -fsanitize=address -fno-omit-frame-pointer" 
+        cmake -S g2c -B g2c/build -DUSE_AEC=ON -DJasper_ROOT=$GITHUB_WORKSPACE/nceplibs/jasper -DBUILD_G2C=ON -DLOGGING=On -DPTHREADS=ON -DFTP_TEST_FILES=ON -DFTP_LARGE_TEST_FILES=OFF -DTEST_FILE_DIR=/home/runner/data -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_FLAGS="-Werror -g -O0 -fsanitize=address -fno-omit-frame-pointer" 
         cmake --build g2c/build --parallel 2 --verbose
         ctest --test-dir g2c/build --verbose --output-on-failure --rerun-failed
         
+    - name: warning
+      if: matrix.config == 'warning'
+      run: |
+        set -x
+        export CC=gcc
+        cmake -S g2c -B g2c/build -DUSE_AEC=ON -DJasper_ROOT=$GITHUB_WORKSPACE/nceplibs/jasper -DBUILD_G2C=ON -DLOGGING=On -DPTHREADS=ON -DFTP_TEST_FILES=ON -DFTP_LARGE_TEST_FILES=OFF -DTEST_FILE_DIR=/home/runner/data -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_FLAGS="-Wall -Werror" 
+        cmake --build g2c/build --verbose
+        
     - name: code_coverage
       if: matrix.config == 'code coverage'
       run: |
         set -x
         export CC=gcc
-        cmake -S g2c -B g2c/build -DUSE_AEC=ON -DJasper_ROOT=$GITHUB_WORKSPACE/nceplibs/jasper -DBUILD_G2C=ON -DLOGGING=On -DPTHREADS=ON -DFTP_TEST_FILES=ON -DFTP_LARGE_TEST_FILES=OFF -DTEST_FILE_DIR=/home/runner/data -DCMAKE_BUILD_TYPE=Debug-DCMAKE_C_FLAGS="-g -fprofile-arcs -ftest-coverage -fprofile-abs-path -O0"
+        cmake -S g2c -B g2c/build -DUSE_AEC=ON -DJasper_ROOT=$GITHUB_WORKSPACE/nceplibs/jasper -DBUILD_G2C=ON -DLOGGING=On -DPTHREADS=ON -DFTP_TEST_FILES=ON -DFTP_LARGE_TEST_FILES=OFF -DTEST_FILE_DIR=/home/runner/data -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_FLAGS="-g -fprofile-arcs -ftest-coverage -fprofile-abs-path -O0"
         pwd
         cd g2c/build
         make VERBOSE=1
diff --git a/tests/tst_files.c b/tests/tst_files.c
index 1c577925..c38765c0 100644
--- a/tests/tst_files.c
+++ b/tests/tst_files.c
@@ -104,16 +104,16 @@ main()
     /*     /\* Create max number of files. *\/ */
     /*     for (i = 0; i < G2C_MAX_FILES; i++) */
     /*         if ((ret = g2c_create(FILE_NAME, G2C_CLOBBER, &g2cid[i]))) */
-    /*     	return ret; */
+    /*          return ret; */
 
     /*     /\* Try to create one more. *\/ */
     /*     if (g2c_create(FILE_NAME, G2C_CLOBBER, &g2cid2) != G2C_ETOOMANYFILES) */
     /*         return G2C_ERROR; */
 
-    /* 	/\* Close all open files. *\/ */
+    /*  /\* Close all open files. *\/ */
     /*     for (i = 0; i < G2C_MAX_FILES; i++) */
     /*         if ((ret = g2c_close(g2cid[i]))) */
-    /*     	return ret; */
+    /*          return ret; */
     /* } */
     /* printf("ok!\n"); */
     printf("Testing g2c_find_msg2 on file %s...", WAVE_FILE);
@@ -280,9 +280,10 @@ main()
             }
 
             {
-                int pds_template_len, pds_template[G2C_MAX_PDS_TEMPLATE_MAPLEN];
-                int gds_template_len, gds_template[G2C_MAX_GDS_TEMPLATE_MAPLEN];
-                int drs_template_len, drs_template[G2C_MAX_DRS_TEMPLATE_MAPLEN];
+                int pds_template_len, gds_template_len, drs_template_len;
+                long long int pds_template[G2C_MAX_PDS_TEMPLATE_MAPLEN];
+                long long int gds_template[G2C_MAX_GDS_TEMPLATE_MAPLEN];
+                long long int drs_template[G2C_MAX_DRS_TEMPLATE_MAPLEN];
                 int t;
 
                 if ((ret = g2c_inq_prod(g2cid, m, 0, &pds_template_len, pds_template,
@@ -295,15 +296,15 @@ main()
                     return G2C_ERROR;
                 printf("pds_template {");
                 for (t = 0; t < pds_template_len; t++)
-                    printf("%d, ", pds_template[t]);
+                    printf("%lld, ", pds_template[t]);
                 printf("}\n");
                 printf("gds_template {");
                 for (t = 0; t < gds_template_len; t++)
-                    printf("%d, ", gds_template[t]);
+                    printf("%lld, ", gds_template[t]);
                 printf("}\n");
                 printf("drs_template {");
                 for (t = 0; t < drs_template_len; t++)
-                    printf("%d, ", drs_template[t]);
+                    printf("%lld, ", drs_template[t]);
                 printf("}\n");
             }
         }