dev-scheme/guile-*: explain guile workarounds

Package-Manager: Portage-3.0.17, Repoman-3.0.2
Signed-off-by: Maciej Barć <xgqt@riseup.net>

dev-scheme/guile-colorized/guile-colorized-0.1_p20191205.ebuild

@@ -30,6 +30,15 @@ DOCS=( README.md )
 src_prepare() {
 	default
 
+	# guile is trying to avoid recompilation by checking if file
+	#     /usr/lib64/guile/2.2/site-ccache/<foo>
+	# is newer than
+	#     <foo>
+	# In case it is instead of using <foo> guile
+	# loads system one (from potentially older version of package).
+	# To work it around we bump last modification timestamp of
+	# '*.scm' files.
+	# http://debbugs.gnu.org/cgi/bugreport.cgi?bug=38112
 	find "${S}" -name "*.scm" -exec touch {} + || die
 }
 

dev-scheme/guile-colorized/guile-colorized-9999.ebuild

@@ -30,6 +30,15 @@ DOCS=( README.md )
 src_prepare() {
 	default
 
+	# guile is trying to avoid recompilation by checking if file
+	#     /usr/lib64/guile/2.2/site-ccache/<foo>
+	# is newer than
+	#     <foo>
+	# In case it is instead of using <foo> guile
+	# loads system one (from potentially older version of package).
+	# To work it around we bump last modification timestamp of
+	# '*.scm' files.
+	# http://debbugs.gnu.org/cgi/bugreport.cgi?bug=38112
 	find "${S}" -name "*.scm" -exec touch {} + || die
 }
 

dev-scheme/guile-gi/guile-gi-0.3.1.ebuild

@@ -34,6 +34,15 @@ QA_FLAGS_IGNORED=".*"
 src_prepare() {
 	default
 
+	# guile is trying to avoid recompilation by checking if file
+	#     /usr/lib64/guile/2.2/site-ccache/<foo>
+	# is newer than
+	#     <foo>
+	# In case it is instead of using <foo> guile
+	# loads system one (from potentially older version of package).
+	# To work it around we bump last modification timestamp of
+	# '*.scm' files.
+	# http://debbugs.gnu.org/cgi/bugreport.cgi?bug=38112
 	find "${S}" -name "*.scm" -exec touch {} + || die
 }
 

dev-scheme/guile-gi/guile-gi-9999.ebuild

@@ -34,6 +34,15 @@ QA_FLAGS_IGNORED=".*"
 src_prepare() {
 	default
 
+	# guile is trying to avoid recompilation by checking if file
+	#     /usr/lib64/guile/2.2/site-ccache/<foo>
+	# is newer than
+	#     <foo>
+	# In case it is instead of using <foo> guile
+	# loads system one (from potentially older version of package).
+	# To work it around we bump last modification timestamp of
+	# '*.scm' files.
+	# http://debbugs.gnu.org/cgi/bugreport.cgi?bug=38112
 	find "${S}" -name "*.scm" -exec touch {} + || die
 }