Disable dtrace for the arm architecture due to FTBFS during gcc compiling

Temporary workaround for BZ#2026600

Problem with the GCC is already beeing discussed in upstream's Bugzilla
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103395

This commit should be reverted when the GCC fixes the issue on their
side

mariadb.spec

@@ -845,7 +845,11 @@ fi
          -DGRN_DATA_DIR=share/%{name}-server/groonga \
          -DGROONGA_NORMALIZER_MYSQL_PROJECT_NAME=%{name}-server/groonga-normalizer-mysql \
          -DENABLED_LOCAL_INFILE=ON \
+         %ifarch %{arm}
+         -DENABLE_DTRACE=OFF \
+         %else
          -DENABLE_DTRACE=ON \
+         %endif
          -DSECURITY_HARDENED=ON \
          -DWITH_WSREP=%{?with_galera:ON}%{!?with_galera:OFF} \
          -DWITH_INNODB_DISALLOW_WRITES=%{?with_galera:ON}%{!?with_galera:OFF} \
@@ -875,6 +879,10 @@ fi
          -DCONNECT_WITH_JDBC=OFF \
 %{?with_debug: -DCMAKE_BUILD_TYPE=Debug -DWITH_ASAN=OFF -DWITH_INNODB_EXTRA_DEBUG=ON -DWITH_VALGRIND=ON}
 
+# The DTRACE option started to fail on the armv7hl architecture.
+# This issue is already beeing discussed in the GCC upstream bugzilla.
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103395
+# Whenever this issue is fixed in the GCC, we can enable the DTRACE for ARM again.
 
 CFLAGS="$CFLAGS -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE"
 # force PIC mode so that we can build libmysqld.so