[#2786] fix grep: warning: stray \ before -

m4macros/ax_find_library.m4

@@ -144,7 +144,7 @@ AC_DEFUN([AX_FIND_LIBRARY], [
 
     # Add to the runtime search path if the flag is not already added.
     if test -n "${ISC_RPATH_FLAG}" && test "$(printf '%s\n' "${LIBRARY_LIBS}" | grep -Fc -- "${ISC_RPATH_FLAG}")" = 0; then
-      library_location=$(printf '%s\n' "${LIBRARY_LIBS}" | grep -Eo '\-L.*\b' | sed 's/-L//g')
+      library_location=$(printf '%s\n' "${LIBRARY_LIBS}" | grep -Eo -- '-L.*\b' | sed 's/-L//g')
       if test -n "${library_location}"; then
         LIBRARY_LIBS="${LIBRARY_LIBS} ${ISC_RPATH_FLAG}${library_location}"
       fi

src/share/database/scripts/mysql/upgrade_008.1_to_008.2.sh.in

@@ -40,7 +40,7 @@ fi
 # query information_schema for the right database.
 for arg in "${@}"
 do
-    if ! printf '%s' "${arg}" | grep -Eq '^\-\-'
+    if ! printf '%s' "${arg}" | grep -Eq -- '^--'
     then
         schema="$arg"
         break

src/share/database/scripts/mysql/upgrade_009.6_to_010.0.sh.in

@@ -37,7 +37,7 @@ fi
 # query information_schema for the right database.
 for arg in "${@}"
 do
-    if ! printf '%s' "${arg}" | grep -Eq '^\-\-'
+    if ! printf '%s' "${arg}" | grep -Eq -- '^--'
     then
         schema="$arg"
         break

src/share/database/scripts/mysql/upgrade_010_to_011.sh.in

@@ -37,7 +37,7 @@ fi
 # query information_schema for the right database.
 for arg in "${@}"
 do
-    if ! printf '%s' "${arg}" | grep -Eq '^\-\-'
+    if ! printf '%s' "${arg}" | grep -Eq -- '^--'
     then
         schema="$arg"
         break

src/share/database/scripts/mysql/upgrade_011_to_012.sh.in

@@ -37,7 +37,7 @@ fi
 # query information_schema for the right database.
 for arg in "${@}"
 do
-    if ! printf '%s' "${arg}" | grep -Eq '^\-\-'
+    if ! printf '%s' "${arg}" | grep -Eq -- '^--'
     then
         schema="$arg"
         break

src/share/database/scripts/mysql/upgrade_012_to_013.sh.in

@@ -37,7 +37,7 @@ fi
 # query information_schema for the right database.
 for arg in "${@}"
 do
-    if ! printf '%s' "${arg}" | grep -Eq '^\-\-'
+    if ! printf '%s' "${arg}" | grep -Eq -- '^--'
     then
         schema="$arg"
         break

src/share/database/scripts/mysql/upgrade_013_to_014.sh.in

@@ -37,7 +37,7 @@ fi
 # query information_schema for the right database.
 for arg in "${@}"
 do
-    if ! printf '%s' "${arg}" | grep -Eq '^\-\-'
+    if ! printf '%s' "${arg}" | grep -Eq -- '^--'
     then
         schema="$arg"
         break

src/share/database/scripts/mysql/upgrade_014_to_015.sh.in

@@ -37,7 +37,7 @@ fi
 # query information_schema for the right database.
 for arg in "${@}"
 do
-    if ! printf '%s' "${arg}" | grep -Eq '^\-\-'
+    if ! printf '%s' "${arg}" | grep -Eq -- '^--'
     then
         schema="$arg"
         break

src/share/database/scripts/mysql/upgrade_015_to_016.sh.in

@@ -37,7 +37,7 @@ fi
 # query information_schema for the right database.
 for arg in "${@}"
 do
-    if ! printf '%s' "${arg}" | grep -Eq '^\-\-'
+    if ! printf '%s' "${arg}" | grep -Eq -- '^--'
     then
         schema="$arg"
         break

src/share/database/scripts/mysql/upgrade_016_to_017.sh.in

@@ -37,7 +37,7 @@ fi
 # query information_schema for the right database.
 for arg in "${@}"
 do
-    if ! printf '%s' "${arg}" | grep -Eq '^\-\-'
+    if ! printf '%s' "${arg}" | grep -Eq -- '^--'
     then
         schema="$arg"
         break

src/share/database/scripts/mysql/upgrade_017_to_018.sh.in

@@ -37,7 +37,7 @@ fi
 # query information_schema for the right database.
 for arg in "${@}"
 do
-    if ! printf '%s' "${arg}" | grep -Eq '^\-\-'
+    if ! printf '%s' "${arg}" | grep -Eq -- '^--'
     then
         schema="$arg"
         break

tools/bump-lib-versions.sh

@@ -129,7 +129,7 @@ for lib in $(git diff --name-only "${old_release_tag}" src/lib | cut -d '/' -f 3
     continue
   fi
 
-  old_version=$(grep '\-version\-info' "src/lib/${lib}/Makefile.am" | tr -s ' ' | rev | cut -d ' ' -f 1 | rev | cut -d ':' -f 1)
+  old_version=$(grep -- '-version-info' "src/lib/${lib}/Makefile.am" | tr -s ' ' | rev | cut -d ' ' -f 1 | rev | cut -d ':' -f 1)
   new_version=$((old_version + increment))
   sed -i "s/version-info .*/version-info ${new_version}:0:0/" "src/lib/${lib}/Makefile.am"
 done
@@ -141,7 +141,7 @@ if ! ${is_new_tag_stable_release} && ${is_old_tag_stable_release}; then
       continue
     fi
 
-    old_version=$(grep '\-version\-info' "src/lib/${lib}/Makefile.am" | tr -s ' ' | rev | cut -d ' ' -f 1 | rev | cut -d ':' -f 1)
+    old_version=$(grep -- '-version-info' "src/lib/${lib}/Makefile.am" | tr -s ' ' | rev | cut -d ' ' -f 1 | rev | cut -d ':' -f 1)
     new_version=$((old_version + increment_extra))
     sed -i "s/version-info .*/version-info ${new_version}:0:0/" "src/lib/${lib}/Makefile.am"
   done

tools/check-for-duplicate-includes.sh

@@ -115,7 +115,7 @@ for i in $(get_source_files); do
   includes=$(grep -E '^#include' "${i}" | sort -V)
   unique_includes=$(grep -E '^#include' "${i}" | sort -uV)
   diff=$(posix_diff "${includes}" "${unique_includes}" | \
-    grep -F '#include' | grep -E '^\-|^\+' | sed -E 's/^([^-+ ]*)[-+ ]/\1/' )
+    grep -F '#include' | grep -E '^-|^\+' | sed -E 's/^([^-+ ]*)[-+ ]/\1/' )
   if test -n "${diff}"; then
     printf '%s has the following duplicate includes:\n%s\n\n' "${i}" "${diff}"
     found=true