Initial commit

hm_sunwell/node_modules/canvas/util/has_lib.sh

@@ -0,0 +1,64 @@
+#!/bin/sh
+
+has_ldconfig() {
+  hash ldconfig 2>/dev/null
+}
+
+has_system_lib() {
+  regex="lib$1.+(so|dylib)"
+
+  # Add /sbin to path as ldconfig is located there on some systems - e.g. Debian
+  # (and it still can be used by unprivileged users):
+  PATH="$PATH:/sbin"
+  export PATH
+
+  # Try using ldconfig on Linux systems
+  if has_ldconfig; then
+    for _ in $(ldconfig -p 2>/dev/null | grep -E "$regex"); do
+      return 0
+    done
+  fi
+
+  # Try just checking common library locations
+  for dir in /lib /usr/lib /usr/local/lib /opt/local/lib /usr/lib/x86_64-linux-gnu /usr/lib/i386-linux-gnu; do
+    test -d "$dir" && echo "$dir"/* | grep -E "$regex" && return 0
+  done
+
+  return 1
+}
+
+has_freetype() {
+  pkg-config cairo --cflags-only-I | grep freetype2
+}
+
+has_pkgconfig_lib() {
+  pkg-config --exists "$1"
+}
+
+case "$1" in
+  gif)
+    has_system_lib "gif" > /dev/null
+    result=$?
+    ;;
+  jpeg)
+    has_system_lib "jpeg" > /dev/null
+    result=$?
+    ;;
+  pango)
+    has_pkgconfig_lib "pango" > /dev/null
+    result=$?
+    ;;
+  freetype)
+    has_freetype > /dev/null
+    result=$?
+    ;;
+  *)
+    >&2 echo "Unknown library: $1"
+    exit 1
+esac
+
+if test $result -eq 0; then
+  echo "true"
+else
+  echo "false"
+fi