Update License to SPDX
Correct the License for the -doc subpackage

Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild

Fix extra newline in description

Trivial spec file style adjustments

Stop numbering patches

Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild

Switch glib2 BR to pkgconfig(…) form

Drop unnecessary explicit dependencies on pkgconfig

Reduce macro indirection in the spec file

Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild

Rearrange whitespace
Use HTTPS URLs
Make glib2-devel dependency from -devel subpackage arch-specific
Use %autosetup, %make_build, and %make_install macros
Rather than removing the static library, skip building it with --disable-static
Drop obsolete %ldconfig_scriptlets macro
Use much stricter path globs
Use %name macro
Add well-considered patches for all compiler warnings
Drop explicitly versioned dependencies per Fedora guidelines
Build HTML and PDF versions of documentation; rebuld the info pages; and move
doc subpackage with the text file documentation (README, etc.)
Properly install the license (COPYING) file
Patch references to the old libIDL-config, which went away in the year 2002
Install the m4 script for Autoconf as part of the -devel package
Add a man page for the libIDL-config-2 script

Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild