Use pkg-config instead of own script

Switch to `pkg-config` to get the required CFLAGS and LDFLAGS.

internal/pycgo/updateYAML.go.template

@@ -21,8 +21,8 @@
 package pycgo
 
 /*
-#cgo CFLAGS: -I<path-to-dir-that-has-python-header-file>
-#cgo LDFLAGS: -L<path-to-dir-that-has-python-lib> -l<name-of-python-lib>
+#cgo CFLAGS: <cflags>
+#cgo LDFLAGS: <ldflags>
 
 #include <stdlib.h>
 

scripts/createGoSourceFileFromTemplate.sh

@@ -4,57 +4,7 @@ set -euo pipefail
 
 BASEDIR="$(cd "$(dirname "$0")/.." && pwd)"
 
-FIND_PYTHON_H="$( (find /usr -type f -name Python.h 2>/dev/null || true) | grep python3)"
-if [[ "$(wc -l <<<"${FIND_PYTHON_H}")" -eq 0 ]]; then
-  echo "Unable to find Python header file in /usr"
-  exit 1
-fi
-
-if [[ "$(wc -l <<<"${FIND_PYTHON_H}")" -gt 1 ]]; then
-  echo "Found more than one Python header file, not sure what to do ..."
-  exit 1
-fi
-
-case "$(uname)" in
-  Linux)
-    FIND_PYTHON_LIB="$( (find /usr -name "libpython3*.so" -exec readlink -f {} \; 2>/dev/null || true) | uniq)"
-    if [[ "$(wc -l <<<"${FIND_PYTHON_LIB}")" -eq 0 ]]; then
-      echo "Unable to find Python library in /usr"
-      exit 1
-    fi
-
-    if [[ "$(wc -l <<<"${FIND_PYTHON_LIB}")" -gt 1 ]]; then
-      echo "Found more than one Python library, not sure what to do ..."
-      exit 1
-    fi
-    ;;
-
-  \
-    Darwin)
-    FIND_PYTHON_LIB="$( (find /usr -name "libpython3.?.dylib" 2>/dev/null || true) | grep "lib/lib")"
-    if [[ "$(wc -l <<<"${FIND_PYTHON_LIB}")" -eq 0 ]]; then
-      echo "Unable to find Python library in /usr"
-      exit 1
-    fi
-
-    if [[ "$(wc -l <<<"${FIND_PYTHON_LIB}")" -gt 1 ]]; then
-      echo "Found more than one Python library, not sure what to do ..."
-      exit 1
-    fi
-    ;;
-
-esac
-
-PATH_TO_PYTHON_H_DIR="$(dirname "${FIND_PYTHON_H}")"
-PATH_TO_PYTHON_LIB="$(dirname "${FIND_PYTHON_LIB}")"
-PYTHON_LIB_NAME="$(basename "${FIND_PYTHON_LIB}" | sed -e 's/^lib//' -e 's/.so.*//' -e 's/.dylib//')"
-
-echo "Path to Python.h: ${PATH_TO_PYTHON_H_DIR}"
-echo "Path to Python library: ${PATH_TO_PYTHON_LIB}"
-echo "Name of Python library used: ${PYTHON_LIB_NAME}"
-
 sed \
-  -e "s:<path-to-dir-that-has-python-header-file>:${PATH_TO_PYTHON_H_DIR}:" \
-  -e "s:<path-to-dir-that-has-python-lib>:${PATH_TO_PYTHON_LIB}:" \
-  -e "s:<name-of-python-lib>:${PYTHON_LIB_NAME}:" \
+  -e "s:<cflags>:$(pkg-config --cflags python3):" \
+  -e "s:<ldflags>:$(pkg-config --static --libs python3):" \
   "${BASEDIR}/internal/pycgo/updateYAML.go.template" >"${BASEDIR}/internal/pycgo/updateYAML.go"