nasm.spec: sync with Fedora spec file, auto-generate Perl depends

Sync up with how the Fedora spec file has evolved.
Auto-generate the Perl build dependencies.
Add --enable-lto: it makes especally the rdoff files much smaller.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Makefile.in

@@ -348,6 +348,7 @@ clean:
 	$(RM_F) nasm-*-installer-*.exe
 	$(RM_F) tags TAGS
 	$(RM_F) nsis/arch.nsh
+	$(RM_F) perlbreq.si
 	$(RM_F) $(RDFPROGS) $(RDF2BINLINKS)
 
 distclean: clean
@@ -417,8 +418,16 @@ tar: dist
 
 spec: nasm.spec
 
-nasm.spec: nasm.spec.in version.sed
+ALLPERLSRC := $(shell find $(srcdir) -type f -name '*.p[lh]')
-	sed -f version.sed < nasm.spec.in > nasm.spec
+
+perlbreq.si: $(ALLPERLSRC)
+	sed -n -r -e 's/^use[[:space:]]+([^[:space:];]+).*$$/Build-Requires: perl(\1)/p' $(ALLPERLSRC) | \
+	sed -r -e '/perl\((strict|warnings)\)/d' | \
+	sort | uniq > perlbreq.si || ( rm -f perlbreq.si ; false )
+
+nasm.spec: nasm.spec.in version.sed perlbreq.si
+	sed -f version.sed -e '/@@PERLBUILDREQS@@/r perlbreq.si' \
+	< nasm.spec.in > nasm.spec || ( rm -f nasm.spec ; false )
 
 splint:
 	splint -weak *.c

nasm.spec.in

@@ -3,16 +3,22 @@
 Summary: The Netwide Assembler, a portable x86 assembler with Intel-like syntax
 Name: nasm
 Version: @@NASM_MANGLED_VER@@
-Release: 0
+Release: 0%{?dist}
 License: BSD
 Group: Development/Languages
 Source: http://www.nasm.us/pub/nasm/releasebuilds/%{nasm_version}/nasm-%{nasm_version}.tar.xz
 URL: http://www.nasm.us/
 BuildRoot: /tmp/rpm-build-nasm
 Prefix: %{_prefix}
-BuildRequires: perl, asciidoc, xmlto, ghostscript, perl-Font-TTF
+@@PERLBUILDREQS@@
-BuildRequires: adobe-source-sans-pro-fonts, adobe-source-code-pro-fonts
+BuildRequires: autoconf
-BuildRequires: fontconfig, xz
+BuildRequires: asciidoc
+BuildRequires: xmlto
+BuildRequires: ghostscript
+BuildRequires: fontconfig
+BuildRequires: adobe-source-sans-pro-fonts
+BuildRequires: adobe-source-code-pro-fonts
+BuildRequires: xz
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 %package doc
@@ -41,26 +47,18 @@ include linker, library manager, loader, and information dump.
 %setup -q -n nasm-%{nasm_version}
 
 %build
-%configure --disable-pdf-compression
+autoreconf
+%configure --disable-pdf-compression --enable-lto
 make %{?_smp_mflags} everything
+xz -9ef doc/nasmdoc.pdf
 
 %install
 rm -rf "$RPM_BUILD_ROOT"
 mkdir -p "$RPM_BUILD_ROOT"/%{_bindir}
 mkdir -p "$RPM_BUILD_ROOT"/%{_mandir}/man1
-mkdir -p "$RPM_BUILD_ROOT"/usr/tempdoc
+make INSTALLROOT="$RPM_BUILD_ROOT" install install_rdf
-%makeinstall install_everything	docdir="$RPM_BUILD_ROOT"/usr/tempdoc
-cp -a $RPM_BUILD_ROOT/usr/tempdoc/html \
-   $RPM_BUILD_ROOT/usr/tempdoc/nasmdoc.pdf .
-xz -9ef nasmdoc.pdf
-# remove unpackaged files from the buildroot
-rm -rf $RPM_BUILD_ROOT%{_prefix}/tempdoc
-
-%clean
-rm -rf "$RPM_BUILD_ROOT"
 
 %files
-%defattr(-,root,root)
 %doc AUTHORS CHANGES README TODO
 %{_bindir}/nasm
 %{_bindir}/ndisasm
@@ -68,11 +66,9 @@ rm -rf "$RPM_BUILD_ROOT"
 %{_mandir}/man1/ndisasm.1*
 
 %files doc
-%defattr(-,root,root)
+%doc doc/html doc/nasmdoc.pdf.xz
-%doc html nasmdoc.pdf.xz
 
 %files rdoff
-%defattr(-,root,root)
 %{_bindir}/ldrdf
 %{_bindir}/rdf2bin
 %{_bindir}/rdf2com
@@ -83,11 +79,7 @@ rm -rf "$RPM_BUILD_ROOT"
 %{_bindir}/rdflib
 %{_bindir}/rdx
 %{_mandir}/man1/ldrdf.1*
-%{_mandir}/man1/rdf2bin.1*
+%{_mandir}/man1/rd*.1*
-%{_mandir}/man1/rdf2com.1*
+
-%{_mandir}/man1/rdf2ihx.1*
+# This is the upstream spec file; the change log is in git
-%{_mandir}/man1/rdf2ith.1*
+%changelog
-%{_mandir}/man1/rdf2srec.1*
-%{_mandir}/man1/rdfdump.1*
-%{_mandir}/man1/rdflib.1*
-%{_mandir}/man1/rdx.1*