Fix automagic configure options.

--- ipmiutil-3.1.8.orig/configure.ac	2022-05-05 20:48:27.180318912 -0700
+++ ipmiutil-3.1.8/configure.ac	2022-05-05 20:53:10.070503250 -0700
@@ -80,22 +80,30 @@
 #  fi]
 
 drv_landesk=0
+LANDESK_CFLAGS=""
+LANDESK_LDADD=""
 dnl configure for LANDESK libipmiapi or not
 AC_ARG_ENABLE([landesk],
-    [  --enable-landesk       adds landesk library support [[default=no]]],
-    [if test "x$enableval" = "xyes"; then
+	AS_HELP_STRING([--enable-landesk], [enable landesk support (default=no)]),
+	[],
+	[enable_landesk=no]
+)
+AS_IF([test "x$enable_landesk" = "xyes"], [
 	    drv_landesk=1
             LANDESK_CFLAGS="-DLINK_LANDESK"
             LANDESK_LDADD="-lipmiapi -L../lib"
             AC_SUBST(LANDESK_CFLAGS)
             AC_SUBST(LANDESK_LDADD)
-    fi]
-    )
+    echo "landesk enabled"
+])
 
 dnl Configure ipmiutil for lanplus (libipmi_lanplus.a) or not (default yes)
 AC_ARG_ENABLE([lanplus],
-    [  --disable-lanplus      disable lanplus support [[default=enabled]]],)
-if test "x$enable_lanplus" = "xno"; then
+	AS_HELP_STRING([--disable-lanplus], [enable lanplus support (default=yes)]),
+	[],
+	[enable_lanplus=yes]
+)
+
 	drv_lanplus=""
 	LANPLUS_CFLAGS=""
 	LANPLUS_LDADD=""
@@ -103,8 +111,7 @@
 	LANPLUS_CRYPTO=""
 	LANPLUS_SAM="no"
 	LD_SAMX=""
-      echo "lanplus disabled"
-else
+AS_IF([test "x$enable_lanplus" = "xyes"], [
 	drv_lanplus="lanplus"
 	LANPLUS_CFLAGS="-DHAVE_LANPLUS"
 	# LANPLUS_CFLAGS="-DHAVE_LANPLUS -I${projdir}/lib/lanplus/inc"
@@ -115,7 +122,7 @@
 	LANPLUS_SAM="yes"
 	LD_SAMX="../lib/libipmi_lanplus.a -lcrypto"
       echo "lanplus enabled"
-fi 
+])
 
 dnl Configure libipmiutil.a for lanplus or not
 dnl Only SOL requires lanplus, so usually build libipmiutil.a without lanplus
@@ -130,21 +137,28 @@
 #fi
 
 # strings /lib/libssl.so* |grep EVP_sha256 
-dnl configure for SHA256, build lanplus with SHA256 support, uses later openssl.
+dnl configure for SHA256, build lanplus with SHA256 support
+dnl requires openssl-1.0.1 which was released in 2012/03
 AC_ARG_ENABLE([sha256],
-    [  --enable-sha256        build with SHA256 support, requires later openssl.],
-    [if test "x$enableval" = "xyes"; then
-	LANPLUS_CFLAGS="$LANPLUS_CFLAGS -DHAVE_SHA256"
-    fi]
+    AS_HELP_STRING([--disable-sha256], [build with SHA256 support (default=yes)]),
+	dnl action if passed
+	[],
+	dnl action if not passed
+	[enable_sha256=yes]
     )
+AS_IF([test "x$enable_sha256" = "xyes"], [
+  LANPLUS_CFLAGS="$LANPLUS_CFLAGS -DHAVE_SHA256"
+])
 
 dnl configure for EKANALYZER, build with ekanalyzer function enabled
 AC_ARG_ENABLE([ekanalyzer],
-    [  --enable-ekanalyzer        build with ekanalyzer function enabled.],
-    [if test "x$enableval" = "xyes"; then
-	OS_CFLAGS="$OS_CFLAGS -DHAVE_EKANAL"
-    fi]
+	AS_HELP_STRING([--enable-ekanalyzer], [build with ekanalyzer function enabled.]),
+	[],
+	[enable_ekanalyzer=no]
     )
+AS_IF([test "x$enable_ekanalyzer" = "xyes"], [
+	OS_CFLAGS="$OS_CFLAGS -DHAVE_EKANAL"
+    ])
 
 GPL_CFLAGS=""
 CROSS_LFLAGS=""
@@ -154,17 +168,20 @@
 SYSTEMD_DIR=/usr/share/ipmiutil
 
 AC_ARG_ENABLE([useflags],
-    [  --enable-useflags    include environment CFLAGS and LDFLAGS.],
-    [if test "x$enableval" = "xyes"; then
+	AS_HELP_STRING([--enable-useflags], [include environment CFLAGS and LDFLAGS.]),
+	[],
+	[enable_useflags=no])
+AS_IF([test "x$enable_useflags" = "xyes"], [
 	   CROSS_CFLAGS="$CFLAGS"
 	   CROSS_LFLAGS="$LDFLAGS"
-    fi]
-    )
+])
 
 dnl configure for standalone, with no lanplus or GPL libs 
 AC_ARG_ENABLE([standalone],
-    [  --enable-standalone    build standalone, with no GPL or LanPlus libs.],
-    [if test "x$enableval" = "xyes"; then
+	AS_HELP_STRING([--enable-standalone], [build standalone, with no GPL or LanPlus libs.]),
+	[],
+	[enable_standalone=no])
+AS_IF([test "x$enable_standalone" = "xyes"], [
         GPL_CFLAGS=""
 	LANPLUS_CFLAGS=""
 	LANPLUS_LDADD=""
@@ -178,10 +195,11 @@
 	   # cross-compiling, so link with -static (e.g. Android ARM)
 	   CROSS_LFLAGS="-static"
 	   CROSS_CFLAGS="-DCROSS_COMPILE"
+	   # TODO: how can this be effective? Configure only converts Makefile.in -> Makefile
+	   # Configure does not convert Makefile.am->Makefile.in
 	   sed -i -e 's/^# ipmiutil:	$(METASOURCE:.c=.o)/ipmiutil:\t$(METASOURCE:.c=.o)\n\t$(CC) $(CFLAGS) $(LDFLAGS) -o ipmiutil $(METASOURCE:.c=.o) $(LDADD)/'  util/Makefile.am
 	fi
-    fi]
-    )
+    ])
 
 AC_ARG_ENABLE([doc],
     [  --enable-doc           build with documentation [[default=yes]]],
@@ -194,20 +212,22 @@
 
 dnl build libipmiutil with sensor modules
 AC_ARG_ENABLE([libsensors],
-    [  --enable-libsensors	 build libipmiutil with sensor modules [[default=no]]],
-    [if test "x$enableval" = "xyes"; then
+    AS_HELP_STRING([--enable-libsensors], [build libipmiutil with sensor modules (default=no)]),
+    [],
+    [enable_libsensors=no])
+AS_IF([test "x$enable_libsensors" = "xyes"], [
         LIBSENSORS="isensor2.o ievents2.o"
         SAM2OBJ=""
-    fi]
-    )
+    ])
 
 dnl configure for GPL build or not (GPL files: md2.h, ipmi_ioctl.h)
 AC_ARG_ENABLE([gpl],
-    [  --enable-gpl           build with some GPL code [[default=no]]],
-    [if test "x$enableval" = "xyes"; then
+    AS_HELP_STRING([--enable-gpl], [build with some GPL code (default=no)]),
+    [],
+    [enable_gpl=no])
+AS_IF([test "x$enable_gpl" = "xyes"], [
         GPL_CFLAGS="-DALLOW_GPL"
-    fi]
-    )
+    ])
 
 dnl Does this Linux have systemd enabled?  Otherwise use sysv init.
 AC_ARG_ENABLE([systemd],