LibSpiro 20240902 - Version 1.4.0

Libspiro 20221101 introduced a bug which wasn't noticed during 'make check'
and this version removes that bug which causes Libspiro to exit early. The
test seemed like a good idea at the time but is of low value worth keeping.

Libspiro seems to be relatively mature at this point. Files config.sub and
config.guess were removed now as it is likely newer versions of these files
will be generated during 'autoreconf -i; automake', and configure.ac is now
bumped up to requiring AC_PREREQ(2.70) since the older value of 2.64 is now
obsolete and warning about obsolete macros.

.github/workflows/main.yml

@@ -8,7 +8,7 @@ jobs:
       matrix:
         choiceL: [--disable-silent-rules, --enable-verbose_lib, --enable-test_inputs, --enable-test-a-lot]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Create configure
         run: |
           sudo apt-get update -y
@@ -57,7 +57,7 @@ jobs:
       run:
         shell: msys2 {0}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: msys2/setup-msys2@v2
         with:
           msystem: ${{ matrix.msystem }}

ChangeLog

@@ -1,3 +1,13 @@
+- 2024-Sep-02
+    * Libspiro Version 20240902 (1.4.0)
+    * Bugfix - seen in fontforge issue 5209. Reverted code to remove
+      (incorrectly coded) pointer tests which seemed like a good idea
+      back then, but are of low value. Removed it to prioritize speed.
+    * Removed config.sub and config.guess since these are generated at
+      'autoreconf -i;automake' time, which may contain newer versions.
+    * configure.ac updated from 2.64 to 2.70 due to obsolete warnings.
+    * Libspiro code seems relatively mature and stable at this point.  
+
 - 2022-Nov-01
     * Libspiro Version 20221101 (1.3.0)
     * Bugfix - removed forgotten if-then code used with scaling tests.

README.md

@@ -61,6 +61,8 @@ make
 make install
 ```
 
+You can also look at file .github/workflows/main.yml for extra hints.
+
 NOTE: Some Distros and Operating Systems may require you to run 'ldconfig'
 to recognize libspiro if you are not rebooting your computer first before
 installing another program that depends on libspiro. To do this, you may