sys-apps/locale-gen: add 3.2-r1 and 3.3-r1 and revise 9999 per bug #961743

Upon locale-gen-3.0 being introduced, the ebuild lost the ability to
prefixify the locale-gen script in src_prepare(). Address this issue so
that the shebang is properly adjusted for Gentoo Prefix environments.

I eschewed the use of the prefix eclass because I consider its
implementation to be substandard. I also eschewed the use of sed(1)
because it encourages pattern injection and seldom returns a useful exit
status. Instead, perl is used to replace the shebang. I could think of
no reason not to, given that dev-lang/perl is already a requirement.

Reported-by: Nick Bowler <nbowler@draconx.ca>
Fixes: ecc3beb504
Closes: https://bugs.gentoo.org/961743
Signed-off-by: Kerin Millar <kfm@plushkava.net>
Signed-off-by: Sam James <sam@gentoo.org>

sys-apps/locale-gen/locale-gen-3.2-r1.ebuild

@@ -18,11 +18,25 @@ fi
 LICENSE="GPL-2"
 SLOT="0"
 
+# In-place editing became safer in v5.28.
+BDEPEND="
+	>=dev-lang/perl-5.28
+"
 RDEPEND="
 	>=dev-lang/perl-5.36
 	!<sys-libs/glibc-2.37-r3
 "
 
+src_prepare() {
+	# EPREFIX is readonly.
+	local -x MY_EPREFIX=${EPREFIX}
+
+	eapply_user
+
+	perl -pi -e '$f //= ($. == 1 && s/^#!\K\//$ENV{MY_EPREFIX}\//); END { exit !$f }' "${PN}" \
+	|| die "Failed to prefixify ${PN}"
+}
+
 src_install() {
 	dosbin locale-gen
 	doman *.[0-8]

sys-apps/locale-gen/locale-gen-3.3-r1.ebuild

@@ -18,11 +18,25 @@ fi
 LICENSE="GPL-2"
 SLOT="0"
 
+# In-place editing became safer in v5.28.
+BDEPEND="
+	>=dev-lang/perl-5.28
+"
 RDEPEND="
 	>=dev-lang/perl-5.36
 	!<sys-libs/glibc-2.37-r3
 "
 
+src_prepare() {
+	# EPREFIX is readonly.
+	local -x MY_EPREFIX=${EPREFIX}
+
+	eapply_user
+
+	perl -pi -e '$f //= ($. == 1 && s/^#!\K\//$ENV{MY_EPREFIX}\//); END { exit !$f }' "${PN}" \
+	|| die "Failed to prefixify ${PN}"
+}
+
 src_install() {
 	dosbin locale-gen
 	doman *.[0-8]

sys-apps/locale-gen/locale-gen-9999.ebuild

@@ -27,6 +27,16 @@ RDEPEND="
 	!<sys-libs/glibc-2.37-r3
 "
 
+src_prepare() {
+	# EPREFIX is readonly.
+	local -x MY_EPREFIX=${EPREFIX}
+
+	eapply_user
+
+	perl -pi -e '$f //= ($. == 1 && s/^#!\K\//$ENV{MY_EPREFIX}\//); END { exit !$f }' "${PN}" \
+	|| die "Failed to prefixify ${PN}"
+}
+
 src_install() {
 	dosbin locale-gen
 	doman *.[0-8]