diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index bdc26955..bfd52343 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -42,7 +42,7 @@ Please report any bugs and incompatibilities in
 In this version, we tuned some code for GCC 9 and fixed some bugs:
 
 * ADJUSTMENTS:
-   - Use mainstream Harfbuzz for glyph shaping of complex scripts instead
+   - Use mainstream HarfBuzz for glyph shaping of complex scripts instead
      of the modified version.
 * TUNING:
   - Tune some code to depress compilation warnings.
diff --git a/configure.ac b/configure.ac
index cb5d3c31..13821469 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,8 +17,8 @@ dnl Set various version strings - taken gratefully from the SDL sources
 MINIGUI_MAJOR_VERSION=4
 MINIGUI_MINOR_VERSION=0
 MINIGUI_MICRO_VERSION=8
-MINIGUI_INTERFACE_AGE=0
-MINIGUI_BINARY_AGE=0
+MINIGUI_INTERFACE_AGE=8
+MINIGUI_BINARY_AGE=8
 MINIGUI_VERSION=$MINIGUI_MAJOR_VERSION.$MINIGUI_MINOR_VERSION.$MINIGUI_MICRO_VERSION
 
 AC_SUBST(MINIGUI_MAJOR_VERSION)
diff --git a/minigui.pc.in b/minigui.pc.in
index 6280c7d9..abb11c71 100644
--- a/minigui.pc.in
+++ b/minigui.pc.in
@@ -8,6 +8,6 @@ Description: A mature cross-platform windowing and GUI system for embedded syste
 Version: @MINIGUI_VERSION@
 Runmode: @MINIGUI_RUNMODE@
 Requires:
-Libs: -L${libdir} -lminigui_@MGLIB_SUFFIX@ @DEP_LIBS@
-Libs.private:
+Libs: -L${libdir} -lminigui_@MGLIB_SUFFIX@
+Libs.private: @DEP_LIBS@
 Cflags: -I${includedir}