Index: /issm/trunk-jpl/externalpackages/petsc/install-3.11-linux-solid_earth.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/petsc/install-3.11-linux-solid_earth.sh	(revision 24643)
+++ /issm/trunk-jpl/externalpackages/petsc/install-3.11-linux-solid_earth.sh	(revision 24644)
@@ -26,7 +26,4 @@
 	--prefix="${ISSM_DIR}/externalpackages/petsc/install" \
 	--PETSC_DIR="${ISSM_DIR}/externalpackages/petsc/src" \
-	--COPTFLAGS="-O2" \
-	--CXXOPTFLAGS="-O2" \
-	--FOPTFLAGS="-O2" \
 	--with-debugging=0 \
 	--with-valgrind=0 \
Index: /issm/trunk-jpl/externalpackages/petsc/install-3.11-linux-static.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/petsc/install-3.11-linux-static.sh	(revision 24643)
+++ /issm/trunk-jpl/externalpackages/petsc/install-3.11-linux-static.sh	(revision 24644)
@@ -37,7 +37,4 @@
 	--CXXFLAGS="-fPIC" \
 	--FFLAGS="-fPIC" \
-	--COPTFLAGS="-O2" \
-	--CXXOPTFLAGS="-O2" \
-	--FOPTFLAGS="-O2" \
 	--with-debugging=0 \
 	--with-valgrind=0 \
Index: /issm/trunk-jpl/externalpackages/petsc/install-3.11-mac-static.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/petsc/install-3.11-mac-static.sh	(revision 24643)
+++ /issm/trunk-jpl/externalpackages/petsc/install-3.11-mac-static.sh	(revision 24644)
@@ -37,7 +37,4 @@
 	--CXXFLAGS="-fPIC" \
 	--FFLAGS="-fPIC" \
-	--COPTFLAGS="-O2" \
-	--CXXOPTFLAGS="-O2" \
-	--FOPTFLAGS="-O2" \
 	--with-debugging=0 \
 	--with-valgrind=0 \
Index: /issm/trunk-jpl/externalpackages/petsc/install-3.11-mac.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/petsc/install-3.11-mac.sh	(revision 24643)
+++ /issm/trunk-jpl/externalpackages/petsc/install-3.11-mac.sh	(revision 24644)
@@ -26,7 +26,4 @@
 	--prefix="${ISSM_DIR}/externalpackages/petsc/install" \
 	--PETSC_DIR="${ISSM_DIR}/externalpackages/petsc/src" \
-	--COPTFLAGS="-O2" \
-	--CXXOPTFLAGS="-O2" \
-	--FOPTFLAGS="-O2" \
 	--with-debugging=0 \
 	--with-valgrind=0 \
Index: /issm/trunk-jpl/externalpackages/petsc/install-3.12-linux-static.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/petsc/install-3.12-linux-static.sh	(revision 24643)
+++ /issm/trunk-jpl/externalpackages/petsc/install-3.12-linux-static.sh	(revision 24644)
@@ -37,7 +37,4 @@
 	--CXXFLAGS="-fPIC" \
 	--FFLAGS="-fPIC" \
-	--COPTFLAGS="-O2" \
-	--CXXOPTFLAGS="-O2" \
-	--FOPTFLAGS="-O2" \
 	--with-debugging=0 \
 	--with-valgrind=0 \
Index: /issm/trunk-jpl/externalpackages/petsc/install-3.12-linux.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/petsc/install-3.12-linux.sh	(revision 24643)
+++ /issm/trunk-jpl/externalpackages/petsc/install-3.12-linux.sh	(revision 24644)
@@ -26,7 +26,4 @@
 	--prefix="${ISSM_DIR}/externalpackages/petsc/install" \
 	--PETSC_DIR="${ISSM_DIR}/externalpackages/petsc/src" \
-	--COPTFLAGS="-O2" \
-	--CXXOPTFLAGS="-O2" \
-	--FOPTFLAGS="-O2" \
 	--with-debugging=0 \
 	--with-valgrind=0 \
Index: /issm/trunk-jpl/externalpackages/petsc/install-3.12-mac.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/petsc/install-3.12-mac.sh	(revision 24643)
+++ /issm/trunk-jpl/externalpackages/petsc/install-3.12-mac.sh	(revision 24644)
@@ -26,7 +26,4 @@
 	--prefix="${ISSM_DIR}/externalpackages/petsc/install" \
 	--PETSC_DIR="${ISSM_DIR}/externalpackages/petsc/src" \
-	--COPTFLAGS="-O2" \
-	--CXXOPTFLAGS="-O2" \
-	--FOPTFLAGS="-O2" \
 	--with-debugging=0 \
 	--with-valgrind=0 \