Support-by: brain0 <[email protected]>
Support-by: GNU\caustic <[email protected]>

Signed-off-by: Florian Pritz <[email protected]>
---
 scripts/makepkg.sh.in |   38 +++++++++++++++++++++++++++++++++++++-
 1 files changed, 37 insertions(+), 1 deletions(-)

diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index 6ebfac0..cf7dbb9 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -917,6 +917,28 @@ tidy_install() {
        fi
 }
 
+find_soprovides() {
+       local 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 elf[0-9]+-(.*)$/\1/p' 
| tr - _)_$(uname -s)"
+      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}" ${provides[@]}; then
+                               if ! in_array 
"${soname}=${soversion}-${soarch}" ${soprovides[@]}; then
+                                       echo "${soname}=${soversion}-${soarch}"
+                                       soprovides=(${soprovides[@]} 
"${soname}=${soversion}-${soarch}")
+                               fi
+                       fi
+    fi
+       done
+}
+
 write_pkginfo() {
        local builddate=$(date -u "+%s")
        if [[ -n $PACKAGER ]]; then
@@ -950,10 +972,24 @@ write_pkginfo() {
        [[ $depends ]]    && printf "depend = %s\n"    "${depends[@]}"
        [[ $optdepends ]] && printf "optdepend = %s\n" "${optdepends[@]}"
        [[ $conflicts ]]  && printf "conflict = %s\n"  "${conflicts[@]}"
-       [[ $provides ]]   && printf "provides = %s\n"  "${provides[@]}"
        [[ $backup ]]     && printf "backup = %s\n"    "${backup[@]}"
 
        local it
+
+       soprovides=$(find_soprovides)
+       provides=("${provides[@]}" ${soprovides})
+
+       for it in "${provides[@]}"; do
+               if grep -q ".*\.so$" <<< "$it"; then
+                       if ! grep -q "\(^\|\s\)${it}=.*" <<< $soprovides; then
+                               error "$(gettext "Can't find library listed in 
\$provides: %s")" "$it"
+                               return 1
+                       fi
+               else
+                       echo "provides = $it"
+               fi
+       done
+
        for it in "${packaging_options[@]}"; do
                local ret="$(check_option $it)"
                if [[ $ret != "?" ]]; then
-- 
1.7.3.5

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