CHG: reverting configure.ac to previous version

Author: MathieuMorlighem

configure.ac

@@ -29,59 +29,10 @@ AM_PROG_AR
 #Libtool
 LT_INIT([win32-dll])
 
-# =====================================================================
-#  Automatic-Differentiation switches
-# =====================================================================
-AC_ARG_ENABLE([ad],
-  AS_HELP_STRING([--enable-ad],
-                 [Build ISSM with CoDiPack+MediPack (disables PETSc)]),
-  [enable_ad=$enableval],
-  [enable_ad=no])
-
-AC_ARG_WITH([codipack-dir],
-  AS_HELP_STRING([--with-codipack-dir=DIR],  [Prefix of CoDiPack install]),
-  [CODIPACK_DIR=$withval],
-  [CODIPACK_DIR=])
-
-AC_ARG_WITH([medipack-dir],
-  AS_HELP_STRING([--with-medipack-dir=DIR],  [Prefix of MediPack install]),
-  [MEDIPACK_DIR=$withval],
-  [MEDIPACK_DIR=])
-
-# --- Validation & flag embedding -------------------------------------
-if test "x$enable_ad" = "xyes"; then
-  if test -z "$CODIPACK_DIR" || test -z "$MEDIPACK_DIR"; then
-    AC_MSG_ERROR([--enable-ad needs BOTH --with-codipack-dir and --with-medipack-dir])
-  fi
-
-  # Tell source files we are in AD mode
-  AC_DEFINE([ISSM_USE_AD], [1], [Define to 1 if building with automatic differentiation])
-
-  # Drop PETSc automatically (picked up by m4/issm_options.m4)
-  ENABLE_PETSC=no
-  AM_CONDITIONAL([USE_AD], [true])
-else
-  ENABLE_PETSC=yes
-  AM_CONDITIONAL([USE_AD], [false])
-fi
-
-dnl ---- Embed include-paths, lib-paths & libs globally -----------------
-if test "x$enable_ad" = "xyes"; then
-  AM_CPPFLAGS="$AM_CPPFLAGS -I$CODIPACK_DIR/include -I$MEDIPACK_DIR/include -DCODI_ForcedInlines"
-  AM_LDFLAGS="$AM_LDFLAGS -L$CODIPACK_DIR/lib -L$MEDIPACK_DIR/lib"
-  LIBS="$LIBS -lcodi -lmedi"
-fi
-
-dnl  Export the variables so Automake can substitute them
-AC_SUBST([AM_CPPFLAGS])
-AC_SUBST([AM_LDFLAGS])
-AC_SUBST([LIBS])
-
 # ---------------------------------------------------------------------
 #  Run ISSM’s usual option-detection macro collection
 # ---------------------------------------------------------------------
 ISSM_OPTIONS
-ISSM_ENABLE_AD
 
 # ---------------------------------------------------------------------
 #  Output files