On 02/04/2010 04:38 PM, Thomas Bächler wrote:
> I disagree in the "arch" part. It might not be as important now, but in
> the future it could cause problems if we end up havnig multiple
> architecture libraries in one system (and ultimately I want to make that
> possible, if I ever get to it). If we could agree on this scheme:
> 
> soprovides=(libreadline.so)
> would generate
> provides=("${provid...@]}" libreadline.so-x86_64=6)
> 
> Then the "weak -d" flag could ignore the =6 version above and we still
> have everything we would need for matching so-names.
> 
>> From my suggestions it should be clear that I really do not want every
>> package to have all possible so-provides and -depends added
>> automatically.  That seems too much like an even poorer implementation
>> of rpm to me and would be very, very difficult to get around all the
>> edge cases.
Currently both sodepends and soprovides have to be specified in the
PKGBUILD:
sodepends=(libreadline.so libc.so)
soprovides=(libreadline.so)

Versions and arch will be added afterwards and the final line in
.PKGINFO looks like this:
provides = libreadline.so-elf64_x86_64=6


For the arch part a better way to find the arch of the lib would be
nice. Neither readelf nor objdump seem to fit. Readelf only shows 32/64
and objdump shows i686 libs as i368. If anyone has an idea please share.

-- 
Florian Pritz -- {flo,bluewi...@server-speed.net
>From 266c1769446675d6f2ca4ad35320c2366d7f647e Mon Sep 17 00:00:00 2001
From: Florian Pritz <bluew...@xssn.at>
Date: Sat, 6 Feb 2010 00:18:00 +0100
Subject: [PATCH 1/2] makepkg: add soprovides support

Support-by: brain0 <tho...@archlinux.org>
Support-by: GNU\caustic <christoph.sch...@uni-ulm.de>

Signed-off-by: Florian Pritz <bluew...@xssn.at>
---
 etc/makepkg.conf.in   |    3 ++-
 scripts/makepkg.sh.in |   26 ++++++++++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletions(-)

diff --git a/etc/makepkg.conf.in b/etc/makepkg.conf.in
index b92a697..47b9209 100644
--- a/etc/makepkg.conf.in
+++ b/etc/makepkg.conf.in
@@ -67,8 +67,9 @@ BUILDENV=(fakeroot !distcc color !ccache)
 #-- emptydirs: Leave empty directories in packages
 #-- zipman:    Compress manual (man and info) pages in MAN_DIRS with gzip
 #-- purge:     Remove files specified by PURGE_TARGETS
+#-- soprovides:add .so files to provides array
 #
-OPTIONS=(strip docs libtool emptydirs zipman purge)
+OPTIONS=(strip docs libtool emptydirs zipman purge soprovides)
 
 #-- File integrity checks to use. Valid: md5, sha1, sha256, sha384, sha512
 INTEGRITY_CHECK=(md5)
diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index 5bd294c..80c9d50 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -874,6 +874,24 @@ tidy_install() {
 	fi
 }
 
+find_soprovides() {
+	find $pkgdir -type f -name \*.so\* | while read filename
+	do
+    if readelf -h "$filename" 2>/dev/null | grep -q '.*Type:.*DYN (Shared object file).*'; then
+			soarch=$(objdump -a "$filename" 2>/dev/null | sed -rn 's/.* file format (.*)$/\1/p' | tr - _)
+      sofile=$(readelf -d "$filename" 2>/dev/null | sed -nr 's/.*Library soname: \[(.*)\].*/\1/p')
+			[ -z "$sofile" ] && sofile="$(basename "$filename")"
+			
+			soname=$(sed -rn 's/(.*)\.so.*/\1.so/p' <<< "$sofile")
+			soversion=$(sed -rn 's/.*\.so\.(.*)/\1/p' <<< "$sofile")
+
+			if in_array "$soname" ${soprovid...@]}; then
+				echo ${soname}-${soarch}=${soversion}
+			fi
+    fi
+	done
+}
+
 write_pkginfo() {
 	local builddate=$(date -u "+%s")
 	if [[ -n $PACKAGER ]]; then
@@ -903,6 +921,14 @@ write_pkginfo() {
 		echo "force = true" >> .PKGINFO
 	fi
 
+	if [ "$(check_option soprovides)" != "n" ]; then
+		_soprovides=$(find_soprovides)
+	fi
+		
+	if [ "$(check_option soprovides)" != "n" ]; then
+		provides=("${provid...@]}" ${_soprovides})
+	fi
+
 	local it
 	for it in "${licen...@]}"; do
 		echo "license = $it" >>.PKGINFO
-- 
1.6.6.1

>From 875a7cc396ba293c2130ded9b9dd22dc9a77794c Mon Sep 17 00:00:00 2001
From: Florian Pritz <bluew...@xssn.at>
Date: Sat, 6 Feb 2010 00:19:07 +0100
Subject: [PATCH 2/2] makepkg: add sodepends support

Support-by: brain0 <tho...@archlinux.org>
Support-by: GNU\caustic <christoph.sch...@uni-ulm.de>

Signed-off-by: Florian Pritz <bluew...@xssn.at>
---
 etc/makepkg.conf.in   |    3 ++-
 scripts/makepkg.sh.in |   24 +++++++++++++++++++++++-
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/etc/makepkg.conf.in b/etc/makepkg.conf.in
index 47b9209..aa17f71 100644
--- a/etc/makepkg.conf.in
+++ b/etc/makepkg.conf.in
@@ -68,8 +68,9 @@ BUILDENV=(fakeroot !distcc color !ccache)
 #-- zipman:    Compress manual (man and info) pages in MAN_DIRS with gzip
 #-- purge:     Remove files specified by PURGE_TARGETS
 #-- soprovides:add .so files to provides array
+#-- sodepends: add .so files to depends array
 #
-OPTIONS=(strip docs libtool emptydirs zipman purge soprovides)
+OPTIONS=(strip docs libtool emptydirs zipman purge soprovides !sodepends)
 
 #-- File integrity checks to use. Valid: md5, sha1, sha256, sha384, sha512
 INTEGRITY_CHECK=(md5)
diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index 80c9d50..47ecf34 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -874,6 +874,23 @@ tidy_install() {
 	fi
 }
 
+find_sodepends() {
+	find $pkgdir -type f | while read filename
+	do
+		soarch=$(objdump -a "$filename" 2>/dev/null | sed -rn 's/.* file format (.*)$/\1/p' | tr - _)
+		[ -n "$soarch" ] || continue
+		for sofile in $(readelf -d "$filename" 2> /dev/null | sed -nr 's/.*Shared library: \[(.*)\].*/\1/p')
+		do
+			soname=$(sed -rn 's/(.*)\.so.*/\1.so/p' <<< "$sofile")
+			soversion=$(sed -rn 's/.*\.so\.(.*)/\1/p' <<< "$sofile")
+			if in_array "${soname}" ${sodepen...@]}; then
+				echo "${soname}-${soarch}=${soversion}"
+				sodepends=(${sodepen...@]} "${soname}-${soarch}=${soversion}")
+			fi
+		done
+	done
+}
+
 find_soprovides() {
 	find $pkgdir -type f -name \*.so\* | while read filename
 	do
@@ -921,10 +938,15 @@ write_pkginfo() {
 		echo "force = true" >> .PKGINFO
 	fi
 
-	if [ "$(check_option soprovides)" != "n" ]; then
+	if [ "$(check_option soprovides)" != "n" ] || [ "$(check_option sodepends)" = "y" ]; then
 		_soprovides=$(find_soprovides)
 	fi
 		
+	if [ "$(check_option sodepends)" = "y" ]; then
+		_sodepends=$(find_sodepends)
+		depends=("${depen...@]}" ${_sodepends})
+	fi
+
 	if [ "$(check_option soprovides)" != "n" ]; then
 		provides=("${provid...@]}" ${_soprovides})
 	fi
-- 
1.6.6.1



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