fix 1

.github/workflows/osgeo4w.yml

@@ -74,6 +74,8 @@ jobs:
       - name: Set number of cores for compilation
         run: |
           echo "MAKEFLAGS=-j$(nproc)" >> $GITHUB_ENV
+          ls -l /mingw64/lib/pkgconfig
+          ls -l /mingw64/lib
         shell: msys2 {0}
 
       - name: Compile GRASS GIS

configure

@@ -4705,6 +4705,8 @@ fi
 
 # Check for custom PKG_CONFIG
 PKG_CONFIG=${PKG_CONFIG-pkg-config}
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: PKG_CONFIG: $PKG_CONFIG" >&5
+printf "%s\n" "$as_me: PKG_CONFIG: $PKG_CONFIG" >&6;}
 
 # Check for full floating-point support, including Infinity and NaN
 IEEEFLAG=
@@ -10369,7 +10371,7 @@ else
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 printf "%s\n" "yes" >&6; }
 
-  if test -s "${PKG_CONFIG} --exists ${pdal}" ; then
+  if ! ${PKG_CONFIG} --exists ${pdal} ; then
     as_fn_error $? "*** Unable to locate PDAL package." "$LINENO" 5
   fi
 

configure.ac

@@ -68,6 +68,7 @@ AC_SUBST(WINDRES)
 
 # Check for custom PKG_CONFIG
 PKG_CONFIG=${PKG_CONFIG-pkg-config}
+AC_MSG_NOTICE([PKG_CONFIG: $PKG_CONFIG])
 
 # Check for full floating-point support, including Infinity and NaN
 IEEEFLAG=
@@ -1070,7 +1071,7 @@ if test "$with_pdal" = "no" ; then
 else
   AC_MSG_RESULT(yes)
 
-  if test -s "${PKG_CONFIG} --exists ${pdal}" ; then
+  if ! ${PKG_CONFIG} --exists ${pdal} ; then
     AC_MSG_ERROR([*** Unable to locate PDAL package.])
   fi